Flavorful Zesty Pasta with Steak and Peppers in One Pot

Ingredients

• 1 cup shredded mozzarella cheese
• 1/4 cup Parmesan, finely grated
• 1 tsp dried Italian herbs
• 1/2 tsp optional red chili flakes for heat
• 2 tbsp olive oil for cooking
• 1 lb thinly cut beef sirloin
• 1 can (14.5 oz) diced tomatoes with liquid
• 1 green bell pepper, cut into strips
• 1 red bell pepper, cut into strips
• Salt and pepper as needed
• 1 small onion, diced small
• 3 garlic cloves, finely minced
• 2 cups of uncooked penne pasta
• Fresh parsley, optional for serving
• 2 cups low-sodium beef broth