Best Cauliflower Baked Ziti Recipe - How to Make Baked Cauliflower Ziti

Ingredients

• 1 tbsp. extra-virgin olive oil
• 1 medium onion, chopped
• 2 cloves garlic, minced
• Pinch crushed red pepper flakes
• 1 lb. ground beef
• Kosher salt
• Freshly ground black pepper
• 2 tbsp. tomato paste
• 1 tsp. dried oregano
• 1 (28-oz.) can crushed tomatoes
• 2 tbsp. thinly sliced fresh basil, plus more for garnish
• 2 medium heads cauliflower, cut into florets, roasted
• 1 1/2 c. ricotta
• 2 c. shredded mozzarella
• 1/2 c. freshly grated Parmesan