My hubby took one bite, and immediately asked for more

Ingredients
2 pounds beef sirloin, thinly sliced
1 green bell pepper, sliced
1 red bell pepper, sliced
1 large onion, sliced
8 ounces mushrooms, sliced
2 cloves garlic, minced
1 teaspoon salt

1 teaspoon black pepper
1 teaspoon dried oregano
1/2 teaspoon crushed red pepper flakes
10 ounces provolone cheese, sliced
10 ounces cheddar cheese, shredded
4 cups cooked pasta (such as rotini or penne)
Directions

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