Slow cooker turkey meatballs are one of those recipes that make a busy weeknight feel like a Sunday dinner. You get tender, herb-packed meatballs simmered in a rich homemade marinara all with just 10 minutes of prep. I have made this more times than I can count, and it never disappoints.
I still remember the first time I made these on a cold Tuesday evening. The whole house smelled incredible by dinnertime, and my family was at the table before I even called them. That is the magic of this slow cooker turkey meatballs recipe. It works hard while you go about your day, and the results are genuinely satisfying every single time.
Ingredients for Slow Cooker Turkey Meatballs
After making these dozens of times, I have learned which ingredients make the biggest difference. Fresh herbs are non-negotiable here. They give these meatballs their bright, bold flavor without a single breadcrumb. I always reach for 93% lean ground turkey because it stays juicy and does not leave a greasy sauce behind.
Meatballs:
- 1 tablespoon extra virgin olive oil
- 1/2 white or yellow onion, diced
- 1 tablespoon minced garlic, fresh cloves preferred
- 1 lb lean ground turkey, 80-85% or 93% lean recommended
- 1/2 cup fresh parsley, chopped
- 1/4 cup fresh basil, chopped. My preference is always fresh over dried here
- 1 large egg
- 1 teaspoon salt
- 1 teaspoon black pepper
Marinara Sauce:
- 28 oz canned crushed tomatoes. I usually grab fire-roasted for a richer depth of flavor
- 14.5 oz canned diced tomatoes
- 1 tablespoon minced garlic
- 1 tablespoon dried parsley
- 1 tablespoon dried basil
- 1 tablespoon dried oregano
- 1 teaspoon onion powder
- 1/2 teaspoon salt
- 1/2 teaspoon black pepper
Step-by-Step Instructions
In my experience, reading through all the steps once before starting makes this whole recipe feel effortless. The prep goes fast, and then your slow cooker takes over completely.
Step 1: Heat olive oil in a large skillet over medium heat. Add the diced onion and cook until nearly translucent, about 3 to 4 minutes. Add the minced garlic, stir for 30 seconds, then remove from heat. Watch the garlic closely. It burns fast and turns bitter quickly.
Step 2: In a large bowl, combine the ground turkey, sauteed onion and garlic, fresh parsley, fresh basil, egg, salt, and pepper. Mix gently with your hands until just combined. Do not overmix or pack the mixture tightly.
Step 3: Roll the mixture into meatballs about 1.5 inches in diameter. You should get 18 to 20 meatballs. Ground turkey is naturally softer than beef before cooking. That is completely normal. They firm up beautifully once they hit the slow cooker.
Step 4: Place the meatballs in a single layer in the bottom of your slow cooker.
Step 5: Add all marinara sauce ingredients on top of the meatballs. Cover with the lid and cook on high for 4 hours or on low for 6 to 8 hours. Total time is 4 hours 10 minutes on high.
Step 6: Garnish with fresh parsley or basil before serving. Serve over your choice of noodles, spaghetti squash, or zucchini noodles. These also work beautifully as a party appetizer with toothpicks.
What to Serve with Slow Cooker Turkey Meatballs
These meatballs pair well with so many sides. The rich tomato sauce balances beautifully with both hearty and light options depending on your mood or the occasion.
Spaghetti Noodles: The all-time classic pairing. The marinara clings to pasta perfectly for a filling, crowd-pleasing dinner. For a fun variation, try them with this Cheesy Crockpot Meatball Pasta for an extra-indulgent twist.
Spaghetti Squash: A great low-carb swap that soaks up the sauce just as well as pasta. Roast it while the meatballs cook and you have a complete meal with zero extra effort.
Homemade Keto Egg Noodles: If you want something low-carb but still noodle-like, these Homemade Keto Egg Noodles are a perfect match for the marinara sauce.
Zucchini Noodles: Light, fresh, and Whole30 friendly. A great way to add extra vegetables to the plate without losing any of the comfort feel.
Simple Green Salad: Toss together romaine, cucumbers, and a light Italian dressing. It is a fresh, crisp contrast to the rich meatballs. This Healthy Chicken Salad technique also works great as a light side if you want something more substantial.
Artichoke Pasta: For a heartier pairing that still feels elegant, this Artichoke Pasta Slow Cooker Recipe is a fantastic complement that you can prep at the same time.
Meatball Sub Rolls: Spoon the meatballs and sauce onto toasted sub rolls for a quick and satisfying sandwich night. Kids absolutely love this version.
Storage and Serving Tips
Store leftover meatballs and sauce in an airtight container in the refrigerator for up to 4 days. They actually taste even better the next day as the flavors settle and deepen overnight.
To reheat, warm them in a skillet over medium-low heat with a splash of water or chicken broth until heated through. The microwave works too. Just cover the container loosely to avoid splatter. Pro tip: freeze leftovers in a zip-top freezer bag for up to 3 months for a ready-made dinner on your busiest nights.
I recommend portioning the meatballs with sauce into individual containers before freezing. That way you can pull out exactly what you need without thawing the whole batch.
Frequently Asked Questions
Yes, but stick to very lean ground beef. Since these cook in the slow cooker with the sauce, fatty meat will make the marinara greasy. Lean ground beef works just fine and produces a slightly richer flavor.
No. Browning adds color but it is an unnecessary step when cooking in sauce. The slow cooker does all the work and the meatballs stay juicy without pre-browning. Skip the extra step and save yourself the cleanup.
Ground turkey has a naturally softer, mushier texture than ground beef before cooking. Do not be alarmed. Your meatballs will firm up and hold their shape once they cook through in the slow cooker. Avoid packing them too tightly and they will turn out great.
Slow Cooker Turkey Meatballs in Marinara
Ingredients
Equipment
Method
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In a large bowl, combine the ground turkey, sauteed onion and garlic, fresh parsley, fresh basil, egg, salt, and pepper. Mix gently with your hands until just combined. Do not overmix.
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Roll the mixture into meatballs about 1.5 inches in diameter. You should get 18 to 20 meatballs. Ground turkey will feel soft before cooking. This is completely normal.
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Place meatballs in a single layer in the bottom of your slow cooker.
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Add all marinara sauce ingredients on top of the meatballs. Cover with the lid and cook on high for 4 hours or on low for 6 to 8 hours.
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Garnish with fresh chopped parsley or basil before serving. Serve over spaghetti noodles, spaghetti squash, zucchini noodles, or roasted veggies. Also great as an appetizer with toothpicks.
