Philly Cheesesteak Casserole.
Prep Time: 15 minutes Cook Time: 35 minutes Total Time: 50 minutes Servings: 6 Cuisine: American Course: Dinner Difficulty: Easy Ingredients 2 pounds lean ground beef 1 tablespoon olive oil 1 medium yellow onion, diced 2 green bell peppers, sliced 8 ounces mushrooms, sliced 3 cloves garlic, minced 1 teaspoon salt ½ teaspoon black pepper … Read more