Simple, practical, and full of everyday flavour, Roasted Butternut Squash Slider with Balsamic Caramelized onions, Sriracha Mayo. Vegan Sandwich Recipe is a vegan, vegetarian American burger made with Dinner rolls or slider buns, cubed roasted butternut squash, and extra virgin olive oil in about 35 minutes. The recipe lays out the ingredients and each cooking step clearly, so you can adjust seasoning, texture, and serving size for your own kitchen.

Recipe Snapshot

  • Prep time: 15 minutes
  • Cook time: 20 minutes
  • Total time: 35 minutes
  • Yield: 3
  • Category: Burger
  • Cuisine: American

Ingredients

  • Dinner rolls or slider buns

For the roasted squash:

  • 2 cups cubed roasted butternut squash (or other squash)
  • 1 tsp extra virgin olive oil
  • salt (pepper, italian herbs to taste)

For the Sriracha Mayo:

  • 1 Tbsp Sriracha or garlic chile sauce
  • 4 Tbsp vegan mayo

For the Balsamic Caramelized Onions:

  • 2 tsp oil
  • 1 cup sliced onion
  • 1/4 tsp sugar
  • a generous pinch of salt
  • 1 tsp balsamic vinegar

Method

  1. Prep the buns/rolls. Toast lightly if needed. I used my Spelt Rye Sorghum Kamut Barley Multigrain rolls.
  2. Top the roll with lettuce or baby greens, tomato slices (optional).
  3. Heat up a pan with a teaspoon of extra virgin olive oil and Toss the Roasted butternut cubes in salt, pepper and herbs of choice(I used parsley) for a minute to heat it all up. you can also serve it cold tossed in salt and herbs. Use cubed or sliced.
  4. (If you dont have roasted squash, slice the raw squash and place in a large greased pan on medium heat. Flip the slices after 6-8 minutes, sprinkle salt, pepper, herbs, and cook till tender.)
  5. Top with Balsamic or plain Caramelized onions.
  6. Drench the whole tower in as much or as little of the Sriracha/hot sauce vegenaise/mayo.
  7. Top with other half of the roll.
  8. Eat, spill on the sides.

Sriracha Mayo:

  1. Add 1 Tablespoon(or more to taste) of Sriracha or hot sauce in 4-5 Tablespoons of Vegenaise or home made mayo like this one or Sriracha/hot sauce mixed in cashew cream. Mix and use.

Caramelized Onions:

  1. Add enough evoo(extra virgin olive oil) or other oil of choice to coat a pan, heat on medium and cook sliced onion for 10 minutes. Sprinkle a pinch of salt and 1/4 teaspoon sugar(for a 1/2 cup of sliced onion) and a few drops on water. Mix and keep cooking on low-medium, partially covered, stirring every 6-8 minutes, until golden brown. If the onions start to stick or burn add some water. For balsamic onions, Add Balsamic vinegar(1/2 teaspoon or more to taste, for 1/2 cup onion) and cook for another 2-3 minutes.

Kiyaan Singh’s Kitchen Note

Keep this recipe as a working base: cook once as written, then adjust spice, texture, and serving style for your own table.