Cheesy Portabella Sliders

Meaty portabella mushrooms are the surprise ingredient in these easy, cheesy sliders, ready from the broiler in just 20 minutes.

  • Prep Time 20 min
  • Total Time 20 min
  • Servings 4


tablespoon olive oil
portabella mushroom caps, cut into 1/4-inch slices
medium onion, cut into 1/4-inch slices
teaspoon Montreal steak grill seasoning
slices provolone cheese, each cut in half
tablespoon chopped fresh chives
mini hamburger buns

  • 1 In large skillet, heat oil over medium-high heat. Cook mushrooms in oil 3 to 5 minutes, stirring occasionally, until they begin to brown. Add onion; cook 2 to 3 minutes longer. Stir in grill seasoning.
  • 2 Set oven control to broil. Line cookie sheet with foil or cooking parchment paper.
  • 3 Place bun bottoms on cookie sheet; top each with mushroom mixture and half slice of cheese. Broil 30 to 60 seconds or until cheese is melted. Sprinkle with chives. Cover with bun tops.

Expert Tips

Cheddar or mozzarella cheese can be used instead of provolone.

Add shredded or diced cooked chicken to the mushroom mixture for a protein-packed slider.