Crock Pot Penne Pasta Recipe: Hands-Off Cheesy Indulgence

This crock pot penne pasta delivers restaurant-quality results with minimal effort. Tender pasta, rich tomato sauce, and melted cheese come together perfectly in one pot.

The beauty of this method is its simplicity. Just combine uncooked penne with marinara, broth, and spices, then let the slow cooker work its magic. No pre-cooking, no constant stirring.

After a few hours, you’ll find perfectly al dente pasta swimming in a savory sauce. Add cheese at the end for a creamy finish that’s impossible to resist.

Ideal for busy weeknights or feeding a crowd. This hands-off approach makes it a reliable favorite for any home cook.

Ingredients for Crock Pot Penne Pasta

Pantry staples plus a few fresh items make this one-pot wonder happen.

The pasta is the base here. Barilla penne holds up best in slow cooking—avoid the thin stuff that turns mushy. I grab mine from Costco in bulk. The marinara can be jarred (I won’t judge)—Rao’s or Victoria are my go-tos. For the cheese, low-moisture mozzarella melts better than fresh. Skip the pre-shredded kind (the anti-caking agents mess with the texture).

No chicken broth? Vegetable broth works fine. Heavy cream too rich? Whole milk at half the amount still gives creaminess. The Italian seasoning blend is flexible—use what you’ve got or make your own. If you’re out of fresh garlic, 1 tsp garlic powder does the trick. Adding a pinch of sugar to the sauce balances the acidity if it tastes too sharp.

Leftover pasta keeps 4-5 days in the fridge, but it soaks up liquid over time. Stir in a splash of milk or broth when reheating. Freezes for 2-3 months if you’ve got extras. I always double the batch for easy lunches later (it tastes even better the next day).

Step-by-Step Instructions for Crock Pot Penne Pasta

This is how I get perfectly al dente pasta with a rich, cheesy sauce every time.

Step 1: Sauté the Aromatics for Depth of Flavor

Heat the 1 tbsp Olive Oil in a skillet over medium heat. Add the 1 whole Onion, finely diced, and cook for 3-4 minutes until it softens and turns translucent. This builds the flavor foundation that makes the dish taste complex.

Add the 3 cloves Garlic Cloves, minced, and cook for another 30 seconds until fragrant. Stir constantly to prevent burning. Sprinkle in the 1 tbsp Dried Italian Seasoning, 0.5 tsp Red Pepper Flakes, 1 tsp Salt, and 0.5 tsp Black Pepper to bloom the spices in the oil.

Step 2: Combine Liquid Ingredients in the Crock Pot

Transfer the sautéed onion and garlic mixture to your slow cooker. Pour in the 24 oz Marinara Sauce and 2 cups Chicken Broth, then stir to combine. The broth helps cook the pasta evenly and prevents it from turning mushy.

Add the 12 oz Penne Pasta and stir to ensure it’s fully submerged in the liquid. This step is crucial—if the pasta isn’t covered, it’ll cook unevenly. Don’t worry if it seems like a lot of liquid; the pasta will absorb most of it as it cooks.

Step 3: Cook on High Until Pasta is Al Dente

Cover the slow cooker and cook on high for 1 hour 30 minutes. Start checking the pasta at the 1 hour 15 minute mark—you want it to be just shy of al dente. Stir once halfway through to prevent sticking and ensure even cooking.

If the pasta isn’t quite done but the liquid is mostly absorbed, add a splash of water or broth and cook for another 10-15 minutes. The goal is tender pasta with a bit of bite, not mushy noodles.

Step 4: Stir in Cream and Cheese for the Finishing Touch

Once the pasta is cooked, stir in the 0.5 cup Heavy Cream. This adds a luxurious richness to the sauce. Then, sprinkle the 2 cups Shredded Mozzarella Cheese and 0.5 cup Grated Parmesan Cheese evenly over the top.

Cover the slow cooker again and let it sit for 5-10 minutes to allow the cheeses to melt completely. Stir everything together until the sauce is smooth and creamy. The heat from the pasta and slow cooker will melt the cheese without making it stringy.

Step 5: Rest and Serve

Turn off the slow cooker and let the pasta rest for 5 minutes. This allows the sauce to thicken slightly and the flavors to meld together. If the sauce seems too thin, let it sit uncovered for a few minutes to reduce.

Serve immediately while hot, garnished with extra grated parmesan if desired. Each bite should be perfectly tender with a rich, cheesy sauce clinging to every piece of pasta.

Best Sauces and Condiments for This Dish

Classic Marinara Boost

For extra depth, stir in 2 tbsp tomato paste with the marinara. This intensifies the tomato flavor and thickens the sauce slightly. I also add 1 tsp balsamic vinegar for a touch of sweetness that balances the acidity beautifully. 💫

Creamy Alfredo Twist

Swap the marinara for 24 oz Alfredo sauce and reduce the broth to 1 cup. This creates a decadent, creamy base. Add ½ tsp nutmeg for warmth and finish with fresh parsley for brightness.

Spicy Arrabbiata Kick

Mix 1 tbsp crushed red pepper into the marinara for heat. I recommend Tutto Calabria for quality flakes. Balance it with 1 tsp honey to round out the spice. The result is bold and vibrant.

Pesto Swirl

Stir in ½ cup basil pesto at the end with the cream. This adds fresh herbal notes that cut through the richness. Use Barilla pesto for convenience or make your own for maximum flavor.

Garlic Butter Drizzle

Melt 2 tbsp butter with 1 minced garlic clove and drizzle over individual servings. This adds a luxurious finish that takes the dish to restaurant level. Simple but incredibly effective.

Frequently Asked Questions