Best Spaghetti & Meatballs Recipe

Ingredients

• 1 lb. spaghetti
• 1 lb. ground beef
• 1/3 c. bread crumbs
• 1/4 c. finely chopped parsley
• 1/4 c. freshly grated Parmesan, plus more for serving
• 1 large egg
• 2 garlic cloves, minced
• Kosher salt
• 1/2 tsp. red pepper flakes
• 2 tbsp. extra-virgin olive oil
• 1/2 c. onion, finely chopped
• 1 (28-oz.) can crushed tomatoes
• 1 bay leaf
• Freshly ground black pepper