Slow Cooker Tuna Macaroni

If you’re looking for an easy slow cooker tuna macaroni recipe that’s creamy, comforting, and incredibly affordable, this 4-ingredient tuna pasta is the perfect family meal. Made with pantry staples like canned tuna, elbow macaroni, milk, and cheddar cheese, this recipe transforms simple ingredients into a rich, cheesy dinner with almost no prep.

Perfect for busy weeknights, meal prep, or stretching your grocery budget, this slow cooker tuna macaroni and cheese cooks entirely in the crockpot, giving you tender pasta and creamy melted cheese without standing over the stove. It’s an old-fashioned comfort food recipe that’s satisfying, kid-friendly, and ideal for feeding the whole family.

Why You’ll Love This Recipe

• Only 4 simple pantry ingredients
• Budget-friendly and family-approved
• Easy dump-and-go slow cooker recipe
• Creamy, cheesy, and comforting
• Great for busy weeknights
• High in protein from canned tuna
• Minimal preparation and cleanup
• Perfect for leftovers and meal prep

Servings: 4

Ingredients

• 2 cups dry elbow macaroni
• 3 cups whole or 2% milk
• 2 cups shredded cheddar cheese, divided
• 2 cans (5 ounces each) flaked tuna in water, drained

Instructions

1. Lightly grease a 4- to 6-quart slow cooker with cooking spray or a little oil.
2. Add the dry elbow macaroni and spread it evenly across the bottom.
3. Scatter the drained flaked tuna evenly over the pasta, breaking up any large pieces.
4. Sprinkle 1½ cups of the shredded cheddar cheese over the tuna.
5. Pour the milk evenly over the ingredients, making sure most of the pasta is covered. Gently press any exposed pasta into the liquid.
6. Cover and cook on LOW for 2 to 2½ hours, without lifting the lid during the first 90 minutes.
7. Once the pasta is tender, stir everything together until creamy and well combined.
8. Sprinkle the remaining ½ cup cheddar cheese over the top, cover again, and cook for another 5–10 minutes until melted.
9. Season with salt and black pepper to taste, then serve hot.

Benefits of This Recipe

This easy tuna macaroni recipe is an excellent source of protein thanks to canned tuna while providing satisfying carbohydrates for lasting energy. Using pantry staples keeps the cost low, making it a fantastic budget meal for families. Slow cooking creates tender pasta and a rich, creamy cheese sauce without constant stirring, making dinner practically effortless.

Serving Suggestions

Serve this creamy tuna macaroni with steamed peas, green beans, roasted broccoli, or a crisp garden salad. Add buttered bread, garlic toast, or crunchy crackers for the perfect comforting meal. A sprinkle of fresh parsley or extra cheddar cheese adds even more flavor.

Storage & Reheating

Store leftovers in an airtight container in the refrigerator for up to 4 days. Reheat gently in the microwave or on the stovetop with a splash of milk to restore the creamy texture. This recipe is ideal for next-day lunches.

Variations

• Stir in frozen peas or mixed vegetables during the final 20 minutes.
• Replace part of the milk with evaporated milk for an even creamier texture.
• Use Monterey Jack, Colby, or mozzarella cheese for a different flavor.
• Add crushed crackers or potato chips on top just before serving for extra crunch.