This slow cooker 3-ingredient creamy tomato penne is exactly the kind of recipe I lean on during busy spring weeks when work runs late and the kids’ activities stack up. A coworker actually tipped me off to this trick: you toss just three pantry-friendly ingredients into the slow cooker before work, and by the time you walk back through the door, you’ve got tender pasta coated in a rich, velvety pink tomato cream sauce. No precooking the noodles, no standing over the stove. It’s not a traditional Italian recipe by any means—more of a Midwestern weeknight hack—but it absolutely hits that cozy, comforting pasta craving with almost zero effort.
Serve this creamy tomato penne straight from the slow cooker or scooped into shallow bowls with a simple green salad on the side—think romaine or mixed greens with a bright vinaigrette to balance the richness. Garlic bread, breadsticks, or even buttered toast are perfect for swiping up any extra sauce. If you want to bulk it up, add a quick protein like rotisserie chicken or grilled sausage on the side, and finish the bowls with a sprinkle of grated Parmesan and cracked black pepper if you have them handy.
Slow Cooker 3-Ingredient Creamy Tomato PenneServings: 4
Ingredients
1 (24-ounce) jar tomato basil pasta sauce
2 cups heavy cream
12 ounces uncooked penne pasta
Directions
Lightly grease the inside of a 4- to 6-quart slow cooker with nonstick spray or a thin swipe of oil to help prevent sticking around the edges.
Pour the entire jar of tomato basil pasta sauce into the slow cooker. Add the heavy cream and whisk or stir together until you have a smooth, pinkish-red sauce with the herbs from the sauce evenly distributed.
Add the uncooked penne pasta to the slow cooker and stir well, making sure all of the noodles are submerged in the creamy tomato mixture. Press down any pieces that float to the top so they’re mostly covered by sauce.
Cover the slow cooker with the lid and cook on LOW for 2 to 3 hours, stirring once about halfway through if you’re home. The pasta is done when it’s tender but still has a little bite (al dente) and the sauce is thick, rich, and clinging to the noodles.
If the sauce looks a little thin when the pasta is done, turn off the heat, leave the lid off, and let it sit for 5 to 10 minutes; the pasta will continue to absorb some of the liquid and the sauce will thicken. If it seems too thick, stir in a splash of cream or water until it’s silky and coats the penne.
Taste and adjust the seasoning if desired by adding a pinch of salt or black pepper (optional), then spoon the creamy tomato penne onto plates or into bowls and serve hot.
Variations & Tips
To keep the 3-ingredient magic, I build in extras as optional add-ons rather than part of the base recipe. For extra flavor, you can stir in grated Parmesan or pecorino right before serving, or top each bowl with a sprinkle of cheese and red pepper flakes. If you want more protein, fold in cooked shredded chicken, sliced cooked Italian sausage, or a can of drained chickpeas during the last 10 to 15 minutes of cooking so they warm through without overcooking. You can also stir in a handful of baby spinach or chopped kale at the end; the residual heat will wilt the greens into the sauce. If you need to stretch the meal for a crowd, serve the pasta with a big salad and crusty bread, or double the recipe in a larger slow cooker, checking a bit earlier to avoid overcooking the pasta. For food safety, keep the slow cooker on LOW only and avoid leaving cooked pasta at room temperature for more than 2 hours—refrigerate leftovers promptly in shallow containers. Reheat gently on the stovetop or in the microwave with a splash of cream or water to loosen the sauce, heating until steaming hot all the way through. Always discard leftovers that have an off smell, unusual texture, or have been left out too long. If using any added meats, make sure they’re fully cooked before stirring them into the slow cooker and reheat them to a safe temperature when serving.
