4.6/5
(12 Votes)
Ingredients
- 1 sweet onion, thinly sliced
- 1 T. olive oil
- 1 red pepper, thinly sliced
- 8-oz. pkg. sliced mushrooms
- 1-1/2 lbs. ground beef
- sirloin, formed into 6 oval-shaped burgers
- 12 thin slices provolone cheese
- 6 hoagie or sub buns, split
- Optional: pepperoncini slices
Preparation
Step 1
In a skillet over medium heat, cook onion in oil for 5 minutes, stirring occasionally. Add red pepper and mushrooms; cook until tender, 4 to 5 minutes. Drain and set aside. Place burgers on a grill over medium-high heat. Cover and cook for about 3 minutes per side. Remove from heat; top each burger with 2 slices cheese.
Cover and let stand 2 to 3 minutes, until cheese melts. Place burgers on
buns.
Top with onion mixture and pepperoncini, if desired.
Makes 6 servings.