Baked Mostaccioli Slow Cooker 4-Ingredient

Baked Mostaccioli. I made this by mistake, and it turned out awesome. Now it’s the only dish everyone wants me to bring to potluck parties.

This easy 4-ingredient slow cooker mostaccioli is a fun kitchen win. I whipped it up for a cold-weather party with stuff from my pantry—like pasta, sauce, and cheese. It got super cozy and cheesy, and folks won’t let me bring anything else. Mostaccioli is tube-shaped pasta like penne. It soaks up sauce great and cooks soft in the slow cooker, just like oven baking but way easier.

Baked Mostaccioli Slow Cooker 4-Ingredient. Crockpot magic! Toss uncooked tube pasta in jarred sauce, layer with melty mozzarella and Parmesan, then slow-cook low for tender bites under bubbly cheese. No boiling needed—it’s foolproof comfort food for crowds. Perfect potluck star: gooey, saucy, and ready with zero fuss. Feeds 8-10 happy eaters. (50 words)

Serve right from the pot on a strong table. Add a fresh green salad with tangy dressing to balance the cheesy goodness. Warm garlic bread or crusty Italian bread scoops up extra sauce. Try roasted veggies like broccoli or carrots, or an antipasto platter with olives. Pair with light red wine like Chianti, fruity Zinfandel, or lemon sparkling water.

Servings: 8-10

Ingredients

• 1 pound uncooked mostaccioli pasta

• 48 ounces (about 6 cups) of jarred marinara or spaghetti sauce

• 3 cups shredded mozzarella cheese, divided

• 1 cup grated Parmesan cheese, divided

Baked Mostaccioli: Directions

1. Spray a big oval slow cooker (5 to 7 quarts) lightly with nonstick spray or oil. This stops sticking and makes cleaning simple.

2. In a big bowl, mix uncooked pasta with the sauce. Stir until every piece gets covered well. This helps it cook even.

3. In another bowl, blend 2 cups mozzarella with 1/2 cup Parmesan. Save this for the middle cheesy layer.

4. Put one-third of the sauced pasta in the bottom of the cooker. Spread flat. Sprinkle half the cheese mix on top.

5. Add another one-third sauced pasta. Sprinkle the rest of the middle cheese mix. Top with the last one-third pasta. Smooth the top.

6. Mix the last 1 cup mozzarella and 1/2 cup Parmesan. Sprinkle all over the top for a thick, melty cover.

7. Put on the lid. Cook on LOW for 2 1/2 to 3 1/2 hours. Pasta should be soft but not mushy. Don’t peek for the first 2 hours—it keeps the heat in.

8. At 2 1/2 hours, check a center pasta piece fast. If still firm, cover and check every 20-30 minutes till tender. Cheese should bubble at edges.

9. For a crispy top, lift out the cooker insert (if oven-safe). Broil 3-5 minutes till golden and spotty. Watch it close! Let sit 10 minutes to firm up.

10. Scoop servings straight from the cooker. Grab deep layers for lots of stretchy cheese and sauce. Pasta stays saucy, not watery.