Baked Penne with Spinach and Tomatoes - Slender Kitchen

Ingredients

• 8 oz. high fiber pasta (I used penne)
• 1 tsp. olive oil
• 1/2 onion, diced
• 4 garlic cloves, minced
• 1/8 tsp. red pepper flakes
• 1 tbsp. Italian seasoning
• 28 oz. canned diced fire roasted tomatoes
• 4 cups baby spinach
• 1/4 cup basil, chopped
• 1 cup shredded part skim mozzarella
• Salt and pepper