"Recreate a spaghetti and meatballs recipe for 3 people using the user's provided steps so far. Include: sauté onion, garlic, and parsley in a cast-iron Dutch oven with olive oil, then cool completely; while cooling, boil salted water in the Dutch oven, cook gluten-free pasta until very al dente for 6 to 8 minutes, drain, toss with olive oil, and set aside; make meatballs from cooled onion-garlic mixture plus ground beef and ground pork, cream, bread, eggs, parmesan, and basil, seasoning with salt and pepper, gently combining without overworking; cook a small test piece in the Dutch oven, taste and adjust seasoning, then form the remaining meatballs. Keep the recipe gluten-free, dairy-free, nut-free, shellfish-free, and corn-free by using appropriate substitutions for bread, cream, and parmesan. Use imperial units only. Make it beginner-friendly, quick, and suitable for a moderate-budget weeknight meal with minimal processing and low-inflammation focus."