This 4-ingredient slow cooker pasta bake is the kind of cozy, no-fuss dinner that feels like a hug at the end of a long day. You literally put frozen manicotti pasta tubes into the crock pot, pour over three simple pantry staples, and let the slow cooker do the work. It’s perfect for busy weeknights, sports nights, or those days when you just don’t have the energy to fuss with boiling water and baking dishes. The result is a cheesy, saucy pasta that tastes like you spent all afternoon in the kitchen—my husband asks for it on repeat.
Serve this slow cooker manicotti with a simple green salad dressed with olive oil and vinegar, and some warm garlic bread or buttered rolls to soak up the extra sauce. A side of steamed green beans or roasted broccoli rounds out the plate nicely. For family movie night, I like to set it out buffet-style with a bowl of grated Parmesan and a shaker of red pepper flakes so everyone can finish their plate just the way they like it.
4-Ingredient Slow Cooker Manicotti BakeServings: 6
Ingredients
1 (24–26 oz) jar pasta sauce (any marinara or tomato basil)
1 (12–14 oz) box frozen cheese manicotti (about 10–12 pasta tubes, kept frozen)
1/2 cup water
2 cups shredded mozzarella cheese, divided
Directions
Spray the inside of your slow cooker with nonstick cooking spray for easier cleanup.
Pour about 1 cup of the pasta sauce into the bottom of the slow cooker and spread it out so it fully coats the surface. You want a nice saucy base so the frozen pasta tubes don’t stick.
Place the frozen cheese manicotti in a single layer directly on top of the sauce in the slow cooker insert. The pasta tubes should be frozen solid when they go in—no thawing or pre-cooking needed.
Pour the remaining pasta sauce evenly over the top of the frozen manicotti, making sure every pasta tube is covered with sauce. Use the back of a spoon to nudge sauce into any dry spots.
Pour the 1/2 cup water around the edges and over the top. This helps create enough steam and moisture so the frozen pasta cooks through and gets tender without drying out.
Sprinkle 1 1/2 cups of the shredded mozzarella evenly over the saucy manicotti. Reserve the remaining 1/2 cup for the end.
Cover the slow cooker with the lid and cook on LOW for 4 to 5 hours, or until the manicotti is tender when pierced with a fork and the sauce is bubbling around the edges. Try not to lift the lid during cooking so you don’t lose heat and moisture.
About 10 to 15 minutes before serving, sprinkle the remaining 1/2 cup mozzarella over the top of the hot pasta. Cover again and let it cook just until the cheese on top is melted and gooey.
Once the cheese is melted, turn the slow cooker to WARM. Use a large spoon or spatula to gently lift out the manicotti, keeping the tubes as intact as possible. Spoon extra sauce and cheese over each portion and serve hot.
Variations & Tips
For picky eaters, choose a very smooth marinara without chunks and skip any extra seasonings that might scare them off. You can also mix a little of the jarred sauce with the cheese on top to make it extra creamy and mild. If your family likes more flavor, stir 1 teaspoon of Italian seasoning, 1/2 teaspoon garlic powder, or a pinch of red pepper flakes into the jarred sauce before pouring it over the frozen manicotti. For extra protein, serve with cooked Italian sausage or rotisserie chicken on the side, or layer a cup of cooked, crumbled sausage under the frozen pasta tubes before adding the sauce (this will technically add an ingredient, but the base recipe still works perfectly on its own). To make it feel a bit lighter, use part-skim mozzarella and a lower-sodium sauce, and serve with a big salad. If you’re feeding a crowd, you can double the recipe in a larger slow cooker, just be sure to keep the pasta in mostly one layer so it cooks evenly; add an extra splash of water if it looks too thick. Leftovers reheat well in the microwave—add a spoonful of water or sauce before reheating to keep everything nice and saucy.
