Mushroom & Onion Cheeseburgers

• 1 tablespoon oil
• 2 cups sliced mushrooms
• 1 medium onion, thinly sliced
• 1 lb lean ground beef
• 1 (7/8 ounce) package McCormick Grill Mates Steakhouse Mushroom Steakhouse Burgers Seasoning Mix
• 4 slices swiss cheese or 4 slices provolone cheese
• 4 hamburger buns

1. HEAT oil in large skillet on medium-high heat.
2. Add mushrooms and onion; cook and stir 4 to 5 minutes or until tender.
3. Set aside.
4. MIX ground beef and Seasoning Mix until well blended.
5. Shape into 4 patties.
6. GRILL over medium heat 4 to 6 minutes per side or until burgers are cooked through (internal temperature of 160 degrees F).
7. Add cheese slices to burgers 1 minute before cooking is completed.
8. SERVE burgers on rolls topped with mushroom and onion mixture.

oil, mushrooms, onion, lean ground beef, grill, swiss cheese, buns

Taken from www.food.com/recipe/mushroom-onion-cheeseburgers-516226 (may not work)