Avocado BLT Grilled Cheese

Featured in: Pan & Frying Recipes

This elevated grilled cheese combines the beloved BLT flavors with creamy avocado and melted cheese for an indulgent sandwich. Crispy bacon pairs beautifully with fresh lettuce and tomato, while ripe avocado adds richness between layers of melted cheddar or Monterey Jack cheese on sourdough bread.

The key to perfection is cooking the sandwich over medium-low heat until the bread achieves a golden-brown crust and the cheese melts completely. The entire sandwich comes together in just 20 minutes, making it ideal for lunch or a quick dinner.

Updated on Sun, 18 Jan 2026 14:35:00 GMT
Golden, buttery sourdough grilled cheese layered with crispy bacon, ripe avocado, lettuce, and tomato for the ultimate Avocado BLT Grilled Cheese. Pin It
Golden, buttery sourdough grilled cheese layered with crispy bacon, ripe avocado, lettuce, and tomato for the ultimate Avocado BLT Grilled Cheese. | happysfenj.com

The smell of bacon sizzling in the pan was what pulled my roommate out of bed that Saturday morning. I was standing at the stove in my pajamas, flipping strips and watching the avocado on the counter turn brown because I'd sliced it too early. She wandered in, squinting at the chaos on the counter, and asked what I was making. When I told her it was a grilled cheese with everything good in the world inside it, she laughed and said I was overcomplicated. Ten minutes later, she was holding half my sandwich and apologizing for doubting me.

I made this sandwich for my brother the summer he came home from his first year of college. He was tired and homesick, and I didn't know what to say to make him feel better. So I made him lunch instead. He ate the whole thing in silence, then looked up and said it tasted like comfort. I didn't tell him I'd burned the first one and had to start over. Some things are better left to mystery.

Ingredients

  • Sourdough or country white bread: The sturdy structure holds up to all the fillings without getting soggy, and the slight tang of sourdough plays beautifully with the richness of the cheese and bacon.
  • Unsalted butter, softened: Softened butter spreads evenly and creates that golden, crispy crust without tearing the bread or leaving cold pockets.
  • Cheddar or Monterey Jack cheese: Cheddar brings sharpness, Monterey Jack melts like a dream, and either one will glue this whole sandwich together with gooey, satisfying richness.
  • Thick-cut bacon: Thick slices stay crispy and substantial, giving you that satisfying crunch in every bite instead of dissolving into the sandwich.
  • Ripe avocado, sliced: The creaminess cools down the saltiness of the bacon and adds a silky layer that makes every bite feel luxurious.
  • Medium tomato, sliced: Fresh tomato adds brightness and a little acidity that cuts through all the richness and keeps the sandwich from feeling too heavy.
  • Romaine or butter lettuce: The crunch and freshness from the lettuce give the sandwich texture and a bit of lightness that balances everything else.
  • Salt and freshly ground black pepper: A light seasoning on the avocado and tomato brings out their natural flavors and ties all the ingredients together.

Instructions

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Crisp the bacon:
Cook the bacon in a skillet over medium heat, flipping occasionally, until it's crispy and golden. Drain the slices on paper towels so they stay crunchy and don't make the sandwich greasy.
Butter the bread:
Spread softened butter on one side of each slice of bread, making sure to cover all the way to the edges. This is what creates that perfect golden crust.
Build the sandwiches:
Lay two slices of bread buttered side down, then layer each with cheese, bacon, lettuce, tomato, and avocado. Season the avocado and tomato with a pinch of salt and pepper, add another slice of cheese on top, then cap with the remaining bread slices, buttered side up.
Grill until golden:
Heat a large nonstick skillet or griddle over medium-low heat and place the sandwiches in the pan. Cook for 3 to 4 minutes per side, pressing gently with a spatula, until the bread is golden brown and the cheese is melted and oozing.
Rest and serve:
Remove the sandwiches from the skillet and let them cool for a minute or two before slicing in half. Serve immediately while the cheese is still warm and stretchy.
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Dries dishes, utensils, and cookware neatly after cooking, keeping your countertop organized and clutter free.
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A close-up of a warm Avocado BLT Grilled Cheese, revealing melted cheddar and creamy avocado between golden, crispy bread slices. Pin It
A close-up of a warm Avocado BLT Grilled Cheese, revealing melted cheddar and creamy avocado between golden, crispy bread slices. | happysfenj.com

There was a night last winter when the power went out and I made these sandwiches on a cast iron skillet over the gas stove. We ate by candlelight, laughing at how fancy it felt even though we were just having grilled cheese. My friend said it was the best sandwich she'd ever had, and I think it was because everything tastes better when you're eating it in the dark with someone you love.

Choosing the Right Bread

Sourdough is my go-to because it has structure and flavor, but I've also made this with thick slices of country white or even a good bakery multigrain. The key is using bread that's sturdy enough to hold all the fillings without falling apart or getting soggy. Avoid anything too soft or pre-sliced sandwich bread, it just won't hold up. If your bread is a little stale, even better, it will crisp up beautifully and absorb the butter without getting mushy.

Making It Your Own

This sandwich is forgiving and loves a little creativity. I've added a smear of pesto when I had it in the fridge, and it brought a bright, herby note that made the whole thing sing. A swipe of mayonnaise or even a little hot sauce can change the mood completely. If you want to skip the bacon, try turkey bacon or even roasted mushrooms for a meatier vegetarian option. Just don't skip the avocado, it's the heart of the whole thing.

Serving and Storage

This sandwich is best eaten right away while the bread is crispy and the cheese is still gooey. If you need to make it ahead, cook the bacon in advance and store it in the fridge, then assemble and grill fresh when you're ready to eat. Leftovers don't reheat well because the lettuce wilts and the avocado turns sad, so I usually just make what I need and save the extra ingredients for another round.

  • Serve with a handful of chips, a simple green salad, or a cup of tomato soup for dipping.
  • If you're feeding a crowd, set up a grilled cheese station and let everyone build their own.
  • Wrap any leftover bacon tightly and use it within a day or two for maximum crispness.
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Serve this Avocado BLT Grilled Cheese with a side of tomato soup for a comforting, classic American lunch or easy dinner. Pin It
Serve this Avocado BLT Grilled Cheese with a side of tomato soup for a comforting, classic American lunch or easy dinner. | happysfenj.com

There's something about biting into a sandwich that's crispy on the outside and creamy in the middle that makes everything feel right in the world. I hope this one does that for you too.

Recipe FAQs

What type of bread works best for this sandwich?

Sourdough or country white bread are ideal choices. Both provide structure to hold the fillings and create a satisfying crunch when grilled. You can also use brioche or thick-cut white bread for a softer texture.

How do I prevent the avocado from browning?

Slice the avocado just before assembly and add it as one of the last layers. If preparing ahead, store avocado with the pit intact and wrap tightly with plastic wrap. Lemon or lime juice can also help slow oxidation.

Can I make these sandwiches in advance?

These are best enjoyed immediately after cooking for optimal crispness and cheese melt. However, you can prepare and cook them, then reheat in a toaster oven at 350°F for 3-5 minutes if needed.

What cheese melts best for this sandwich?

Cheddar and Monterey Jack are excellent choices that melt smoothly and evenly. American cheese also works well. Avoid hard cheeses like Parmesan, which don't melt as effectively on grilled cheese.

How can I customize this sandwich?

Add mayonnaise or pesto for extra flavor, substitute turkey bacon or plant-based bacon alternatives, layer in crispy fried onions, or include a fried egg. Experiment with different cheese varieties or add roasted red peppers for a flavor boost.

What heat setting prevents burning?

Use medium-low heat to allow the cheese to melt fully before the bread browns. This typically takes 3-4 minutes per side. If your pan is too hot, the exterior will burn before the interior cheese melts.

Avocado BLT Grilled Cheese

A decadent twist on the classic BLT with crispy bacon, fresh vegetables, creamy avocado, and gooey melted cheese on buttery bread.

Prep Time
10 minutes
Time to Cook
10 minutes
Overall Time
20 minutes
Created by Lily Hudson

Recipe Type Pan & Frying Recipes

Skill Level Easy

Cuisine Type American

Makes 2 Number of Servings

Diet Preferences None specified

What You Need

Bread & Dairy

01 4 slices sourdough or country white bread
02 2 tablespoons unsalted butter, softened
03 4 slices cheddar or Monterey Jack cheese

Meats

01 4 slices thick-cut bacon

Vegetables

01 1 ripe avocado, sliced
02 1 medium tomato, sliced
03 2 leaves romaine or butter lettuce

Condiments & Seasoning

01 Salt and freshly ground black pepper to taste

Step-by-Step

Step 01

Cook the Bacon: Cook bacon slices in a skillet over medium heat until crispy, approximately 5-7 minutes. Transfer to paper towels to drain.

Step 02

Prepare the Bread: Lightly butter one side of each bread slice using softened butter.

Step 03

Assemble the Sandwiches: Place two bread slices buttered side down on a clean work surface. Layer each with one cheese slice, bacon pieces, lettuce, tomato slice, and avocado slice. Season avocado and tomato with salt and pepper. Top with remaining cheese slice and remaining bread slice with buttered side facing up.

Step 04

Cook the Sandwich: Heat a large nonstick skillet or griddle over medium-low heat. Place assembled sandwiches in the skillet and cook until golden brown and cheese is melted, approximately 3-4 minutes per side, pressing gently with a spatula.

Step 05

Finish and Serve: Remove sandwiches from skillet and let cool for 1-2 minutes. Slice diagonally in half and serve immediately.

Tools Needed

  • Large nonstick skillet or griddle
  • Spatula
  • Knife
  • Cutting board

Allergy Details

Always check ingredients for allergens. Not sure? Ask your doctor.
  • Contains wheat from bread
  • Contains milk from butter and cheese
  • Contains pork from bacon
  • May contain egg if using mayonnaise

Nutrition (per portion)

Numbers here are for information, not as health advice.
  • Caloric Value: 600
  • Fat Content: 38 g
  • Carbohydrates: 41 g
  • Protein Amount: 23 g