Skinny Marinara Zoodle Pasta

Ingredients (12)

• 2 Tbsp. extra virgin olive oil
• 1  medium sweet white onion
• 6 garlic cloves
• 1 28-ounce can diced tomatoes (do not drain)
• 2 Tbsp. tomato paste
• 1/2 cup fresh basil leaves
• 1 1/2 tsp.  coarse salt
• 1/4 tsp.  black pepper
• 1/8 tsp.  crushed red pepper flakes
• 8-10 small zucchinis
• Freshly-grated Parmesan cheese
• Prepared meatballs – optional