Meatball Subs with Bell Peppers - Chopped

Ingredients

• 1 lb ground beef
• 1/2 cup breadcrumbs
• 1/4 cup parmesan cheese grated
• 1/4 cup fresh parsley chopped
• 1 tsp garlic powder
• 1/2 tsp salt
• 1/4 tsp black pepper
• 2 tbsp olive oil
• 1 whole onion chopped
• 1 whole bell peppers sliced
• 4 whole hoagie rolls
• 1/2 cup mozzarella cheese shredded