In a skillet over medium heat, saute the garlic and onion in olive oil until translucent. Add the red bell peppers and cook until soft. Add the sausage and marinara. Bring to a boil. Toss the penne in the marinara until coated. Add salt and pepper, to taste, and serve.
Professional Recipe: This recipe was provided by a chef, restaurant or culinary professional and makes a large quantity. The Food Network Kitchens chefs have not tested this recipe in the proportions indicated and therefore cannot make any representation as to the results.