Smashed Butter Bean Salad Sandwich

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I’ve been making this herby smashed butter bean salad sandwich whenever I want something quick, filling, and packed with fresh flavor. Canned butter beans are mashed just enough to create a creamy sandwich filling with plenty of texture, then mixed with crunchy celery, pickled red onions, fresh herbs, tahini, Dijon mustard, lemon juice, smoked paprika, and toasted pumpkin seeds. It’s an easy vegetarian lunch that comes together in minutes and can easily be made vegan!

A toasted butter bean salad sandwich, filled with chicken salad and lettuce, is cut in half and served on a blue and white patterned plate, garnished with fresh dill.
I almost always have a couple cans of butter beans tucked away in the pantry, so this has become one of my favorite last-minute lunches. It comes together in minutes, uses simple ingredients, and tastes like something that took a lot more effort than it actually did.
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A Note From Kristen

I originally started testing this recipe because I wanted a lunch that felt a little more substantial than a salad but was just as easy to throw together. If you’ve spent any time here, you’ve probably noticed that I have a bit of a thing for butter beans! I use them in all kinds of recipes because they’re naturally creamy, hearty, mild in flavor, and super versatile. Smashing them turned out to be the key here. It creates a creamy filling that holds everything together while still keeping plenty of texture, and the combination of fresh dill, pickled red onions, tahini, and smoked paprika gives every bite a little something different. It’s become one of those lunches I can make almost entirely from ingredients I already have on hand. I hope you love it too. Happy eating!
~Kristen

A toasted butter bean salad sandwich filled with a creamy chicken and herb mixture, garnished with fresh dill, sits on a clear glass plate over a blue and white tiled surface.

Key Ingredient Notes

A few quick notes on the ingredients that matter most. Find the full ingredient list and instructions in the recipe card below.

  • Butter Beans: Butter beans are the best choice here because they become creamy when smashed while still holding their shape. Cannellini beans or Great Northern beans are the closest substitutes if needed.
  • Pickled Red Onions: These add tangy flavor that keeps the sandwich from tasting too rich. Homemade or store-bought both work well, or swap in finely diced red onion or shallot for a little extra bite.
  • Tahini: Tahini adds creaminess and a subtle nutty flavor that pairs beautifully with the butter beans. If you don’t have it, simply replace it with an extra tablespoon of mayonnaise or Greek yogurt.
A toasted butter bean salad sandwich or classic chicken or tuna salad mixture, garnished with fresh dill, served on a clear glass plate with a blue and white mosaic background.
A hand holds a toasted butter bean salad sandwich with flaky, herbed fish filling, over a clear glass plate on a blue and white tiled surface.

How to Make a Butter Bean Sandwich

01

Mash the butter beans with a fork, leaving some whole for texture.

A bowl filled with mashed white beans for a butter bean salad sandwich sits beside a fork on a blue and white tiled surface.

02

Add the celery, pickled red onions, parsley, dill, mayonnaise, tahini, lemon juice, Dijon mustard, smoked paprika, toasted pumpkin seeds, salt, and black pepper. Stir until well combined.

A bowl filled with chopped vegetables, herbs, seeds, and a creamy sauce—perfect as a vibrant butter bean salad sandwich filling—served on a blue and white mosaic-patterned surface.

03

Layer the lettuce or arugula onto a slice of toasted bread, spoon the butter bean salad on top, and finish with a second slice of bread.

A grilled butter bean salad sandwich filled with a creamy mixture, cut in half and served on a clear plate, garnished with fresh dill on a blue mosaic surface.

How I Like to Serve It

A butter bean salad sandwich, filled with a chunky, creamy mixture and fresh dill, sits on a glass plate atop a blue and white mosaic table.

Tips for Success

  • Don’t over-mash the butter beans. Leaving plenty of larger pieces creates a creamier, more satisfying texture than mashing them completely smooth.
  • If your pickled red onions are especially juicy, let any excess brine drip off before adding them to the filling so it doesn’t become too wet.
  • For the best texture, refrigerate the filling and assemble the sandwiches just before serving. This keeps the bread from becoming soggy.
A toasted butter bean salad sandwich, cut in half and filled with chopped ingredients and fresh herbs, is placed on a clear glass plate with a sprig of dill, set on a blue and white mosaic surface.

More Vegetarian Sandwich Recipes You Might Like

Two toasted butter bean salad sandwiches filled with a creamy mixture, garnished with dill, are served on a clear glass plate atop a blue and white tiled surface.

A toasted butter bean salad sandwich, filled with chicken salad and lettuce, is cut in half and served on a blue and white patterned plate, garnished with fresh dill.

Smashed Butter Bean Salad Sandwich

Author: Kristen Wood
270kcal
No ratings yet
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Prep 10 minutes
Cook 0 minutes
Total 10 minutes
My smashed butter bean salad sandwich is a quick and satisfying vegetarian lunch made with creamy butter beans, celery, pickled red onions, fresh herbs, tahini, Dijon mustard, and toasted pumpkin seeds. Easy to make ahead and ready in just about 10 minutes!
Servings 4 servings
Course Lunch
Cuisine American
Diet Gluten Free, Vegan, Vegetarian
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Ingredients

Butter Bean Salad Filling
  • 2 15-ounce cans butter beans drained and rinsed
  • cup celery finely diced
  • ¼ cup pickled red onions chopped
  • 3 tablespoons fresh parsley chopped
  • 2 tablespoons fresh dill chopped
  • 2 tablespoons mayonnaise or Greek yogurt use vegan alternatives if necessary
  • 1 tablespoon tahini
  • 1 tablespoon lemon juice fresh or bottled
  • 1 teaspoon Dijon mustard
  • ½ teaspoon smoked paprika
  • 2 tablespoons toasted pumpkin seeds
  • 1/2 teaspoon salt
  • 1/4 teaspoon ground black pepper
For Serving
  • toasted bread slices
  • lettuce or arugula
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Method

  1. Add the butter beans to a large bowl and roughly smash with a fork, leaving some whole for texture.
    A bowl filled with mashed white beans for a butter bean salad sandwich sits beside a fork on a blue and white tiled surface.
  2. Stir in the celery, pickled onions, parsley, dill, mayonnaise, tahini, lemon juice, Dijon, smoked paprika, toasted seeds, salt, and pepper.
    A bowl filled with chopped vegetables, herbs, seeds, and a creamy sauce—perfect as a vibrant butter bean salad sandwich filling—served on a blue and white mosaic-patterned surface.
  3. To assemble, layer lettuce or arugula onto one slice of toasted bread, pile on the butter bean mixture, then top with another slice of bread. Enjoy!
    A toasted butter bean salad sandwich filled with a chunky mixture, lettuce, and herbs sits on a clear plate, garnished with sprigs of fresh dill, on a blue patterned tablecloth.

Notes

Storage 
Store leftover sandwich filling in an airtight container in the refrigerator for up to 4 days. For the best texture, keep the bread and filling separate and assemble the sandwich just before serving to prevent soggy bread.
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Nutrition

Serving1sandwichCalories270kcalCarbohydrates42gProtein15gFat6gSaturated Fat1gPolyunsaturated Fat2gMonounsaturated Fat2gTrans Fat0.01gCholesterol0.4mgSodium1099mgPotassium623mgFiber12gSugar2gVitamin A435IUVitamin C7mgCalcium91mgIron5mg

Nutritional information is automatically calculated using a third-party calculator and is an estimate only.

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