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    Home » Recipes » Lunch

    Published: Jun 13, 2025 by Angie Zoobkoff · This post may contain affiliate links. As an Amazon associate, I earn a commission from qualifying purchases. · Leave a Comment

    The Ultimate BLAT Sandwich

    Jump to Recipe Print Recipe

    The ultimate BLAT sandwich is made with bacon, lettuce, avocado, tomato, and creamy mayo-mustard sauce, all stuffed between two slices of sturdy bread. It's a crave-worthy sandwich that's ideal for lunch or dinner any day of the week.

    Two sandwich halves with bacon, tomato, lettuce, and avocado, stacked on top of each other.

    Personally, I think sandwiches are the perfect food. You can get every food group in there, the variations are endless, and it's an incredibly satisfying meal. That said, it has to be a good sandwich. Plain old ham and cheese isn't going to make the cut, but this BLAT sandwich recipe definitely does. For this hearty handheld meal, creamy avocado, crisp bacon, fresh lettuce, and juicy tomato are sandwiched between two slices of toasted bread. A schmear of mustard mayo takes it over the top. Try it and see.

    Jump to:
    • Ingredients and Substitutions
    • How to Make a Bacon, Lettuce, Avocado, and Tomato Sandwich
    • FAQs
    • Tips and Troubleshooting
    • More Sandwich Recipes You'll Love
    • Recipe

    Ingredients and Substitutions

    Ingredients for a BLAT--mayo, bread, tomato, lettuce, bacon, avocado, and mustard.
    • Bread--Use a firm, sturdy bread that will stand up to the fillings. I recommend an artisan-style bread, like sourdough or Italian bread.
    • Bacon--I use thin cut bacon for these sandwiches. You can use thick-cut bacon if that's what you have on hand, but note that it will take longer to cook.
    • Avocado--Choose dark colored avocados that give slightly when squeezed. Avoid hard bright green (underripe) or mushy avocados (overripe). 

    How to Make a Bacon, Lettuce, Avocado, and Tomato Sandwich

    Mayo and mustard mixed together in a bowl.

    1. Mix the mayo and mustard together in a small bowl.

    Four slices of bacon cooking on a griddle.

    2. Cook the bacon until crisp.

    Four slices of bread toasting on a griddle.

    3. Toast the bread lightly.

    Two sandwiches being assembled with mayo spread on two slices of bread and two more slices of bread topped with bacon and tomato.

    4. Assemble the sandwiches.

    FAQs

    How do I avoid having soggy bread in my sandwich?

    Tomatoes are the biggest contributor to soggy sandwich bread, so I recommend keeping the tomato slices in the center of the sandwich, away from the bread. Salted tomatoes will also release liquid, so be sure to only salt your avocado layer lightly and not the tomato layer, or skip the salt altogether.

    What should I serve with this?

    For a simple meal, serve these bacon, lettuce, avocado, and tomato sandwiches with a handful of potato chips and some raw vegetables or a marinated bean salad.

    Tips and Troubleshooting

    • I like using my Blackstone griddle for cooking the bacon and toasting the bread since it's convenient to be able to cook them at the same time, but you can use a cast iron skillet for cooking the bacon. Pop the bread in a toaster or brown it over the grill for 30 to 60 seconds, if desired.
    • Use a sharp serrated knife for cutting your sandwich so that all of the fillings slice cleanly.
    • Store leftover sandwiches in your cooler or fridge, wrapped in foil or plastic wrap, and enjoy within 1 day.
    A sandwich on a plate with some potato chips.

    More Sandwich Recipes You'll Love

    Two halves of a turkey ciabatta sandwich with tomatoes, pesto, and mozzarella, stacked on top of each other on a cutting board.
    Turkey Ciabatta Sandwich
    A chicken and bacon sandwich on a brioche bun with lettuce and tomato.
    Chicken Bacon Sandwich

    Recipe

    Two sandwich halves with bacon, tomato, lettuce, and avocado, stacked on top of each other.

    The Ultimate BLAT Sandwich

    A woman's face.Angie Zoobkoff
    Packed with bacon, lettuce, avocado, and tomato, this satisfying sandwich has everything going for it.
    No ratings yet
    Print Recipe Pin Recipe
    Prep Time 10 minutes mins
    Cook Time 10 minutes mins
    Total Time 20 minutes mins
    Course Main Course
    Cuisine American
    Servings 2 sandwiches
    Calories 622 kcal

    Equipment

    • Blackstone (or other outdoor) griddle

    Ingredients
      

    • 2 tablespoons mayonnaise
    • 2 teaspoons whole grain mustard
    • 4 slices bacon
    • 4 slices sturdy bread such as sourdough
    • 1 small avocado halved, pitted, and sliced
    • Salt and pepper
    • 1 medium tomato sliced
    • 1 cup shredded iceberg lettuce

    Instructions
     

    • In a small bowl, mix the mayonnaise and mustard together.
    • Heat the griddle to medium. Arrange the bacon in a single layer on the griddle and cook, flipping occasionally, until crisp, 8 to 10 minutes. Transfer to a paper towel-lined plate to drain.
    • While the bacon is cooking, toast the bread on the other side of the griddle, until lightly browned, about 1 minute per side.
    • Spread about 2 teaspoons of the mayo mixture on one side of each slice of bread.
    • Top two of the bread slices with avocado, season lightly with salt and pepper, then add the bacon, tomato and lettuce, dividing everything evenly between the two sandwiches. Top with the second slice of bread, mayo side down.
    • Slice each sandwich in half and serve immediately.

    Notes

      • No griddle?--I like using my Blackstone griddle for cooking the bacon and toasting the bread since it's convenient to be able to cook them at the same time, but you can use a cast iron skillet for cooking the bacon. Pop the bread in a toaster or brown it over the grill for 30 to 60 seconds, if desired.
      • Slice it cleanly--Use a sharp serrated knife for cutting your sandwich so that all of the fillings slice cleanly.
      • Storage--Store leftover sandwiches in your cooler or fridge, wrapped in foil or plastic wrap, and enjoy within 1 day.

    Nutrition

    Serving: 1 sandwichCalories: 622kcalCarbohydrates: 51gProtein: 24gFat: 37gCholesterol: 46mgSodium: 1452mgFiber: 8gSugar: 5g
    Keyword 20 minute meals, sandwiches
    Tried this recipe?Let us know how it was!

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    Hi, I'm Angie! I'm so glad you're here. I can't wait to share my favorite camping and grilling recipes with you.

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