Cauliflower Baked Ziti - Health Nut Ninja

Ingredients

• 1 tbsp. olive oil
• 1 medium onion, chopped
• 2 garlic cloves, minced
• pinch red pepper flakes
• 1 lb. ground beef (optional-Ground turkey)
• kosher salt/Freshly ground black pepper
• 2 tbsp. tomato paste
• 1 tsp. dried oregano
• 1 (28-oz.) can crushed tomatoes
• 2 tbsp. thinly sliced basil, plus more for garnish
• 1 large head of cauliflower, (about 3 cups) cut into florets, blanched, and drained well
• 1 1/2 c. fresh ricotta
• 2 c. shredded mozzarella
• 1/2 c. freshly grated Parmesan