Ingredients
Vegetables & Meat
- 2 tablespoons olive oil
- 1 medium green pepper, sliced
- 1 medium yellow onion, sliced
- 8 ounces Baby Bella or white mushrooms, sliced
- 1 pound lean ground beef
- 2 teaspoons minced garlic (divided)
Seasonings & Sauces
- ½ teaspoon salt (for beef)
- ¼ teaspoon black pepper (for beef)
- 1 tablespoon flour
- ½ cup beef broth
- ¼ teaspoon salt (for garlic butter)
- ¼ teaspoon black pepper (for garlic butter)
- 1 teaspoon dried parsley
Bread & Cheese
- 12 slider buns
- 12 slices provolone cheese
Butter Mixture
- 2 tablespoons unsalted butter
- 1 teaspoon minced garlic (for garlic butter)
Instructions
- Prepare Vegetables: Heat the olive oil in a large skillet over medium heat. Add the sliced green pepper, onion, and mushrooms, and cook until softened. Remove the cooked vegetable mixture from the skillet and set aside.
- Cook Ground Beef: In the same skillet, add the ground beef, 2 teaspoons minced garlic, ½ teaspoon salt, and ¼ teaspoon black pepper. Brown the beef, stirring occasionally, until cooked through and no longer pink.
- Make the Sauce: Sprinkle 1 tablespoon of flour over the cooked ground beef, stirring to coat the meat evenly. Gradually stir in ½ cup beef broth, continuing to cook and stir for about 5 minutes until a gravy-like sauce forms.
- Preheat Oven and Arrange Sliders: Heat the oven to 350°F (175°C) and line a half baking sheet with parchment paper. Place the bottoms of the 12 slider buns on the baking sheet in a single layer.
- Assemble Sliders: Spoon about 2 tablespoons of the ground beef mixture onto each bun bottom. Top each with roughly ¼ cup of the sautéed vegetable mixture and a slice of provolone cheese. Place the top buns over the cheese slices.
- Prepare Garlic Butter: Melt 2 tablespoons of unsalted butter in a microwave-safe bowl. Whisk in 1 teaspoon minced garlic, ¼ teaspoon salt, ¼ teaspoon black pepper, and 1 teaspoon dried parsley until combined.
- Brush Sliders with Garlic Butter: Using a pastry or basting brush, generously coat the tops of the slider buns with the garlic butter glaze.
- Bake: Place the sliders in the preheated oven and bake for 6-8 minutes, or until the tops of the buns are golden brown and the cheese is melted.
- Serve: Remove from oven and let the sliders cool for 1-2 minutes before serving to allow the cheese to set slightly and flavors to meld.
Notes
- For a spicier version, add sliced jalapeños or a dash of hot sauce to the vegetable mixture.
- Use whole wheat slider buns for a healthier option.
- To make ahead, assemble sliders and refrigerate for up to 4 hours before baking.
- Leftovers can be refrigerated and reheated in the oven or microwave.
- If you prefer, substitute provolone with mozzarella or American cheese slices.
- Prep Time: 15 minutes
- Cook Time: 20 minutes
- Category: Sandwiches
- Method: Baking
- Cuisine: American
