Cheesesteak Pasta | Lazy Cooking

Ingredients

• 10 ounces rigatoni
• 2 teaspoons olive oil
• 1 pound ground beef
• salt, to taste
• pepper, to taste
• 1 (8-ounce) package mushrooms, sliced
• 1 green bell pepper, diced
• 1 onion, chopped
• 2 teaspoons garlic, minced
• 2 tablespoons butter
• 2 tablespoons flour
• 2 cups milk
• 1 cup provolone cheese, diced or shredded