Dinner · Part 2 of 3: Instructions
Crockpot Mozzarella Meatball Alfredo Penne: Easy Dump Dinner Step-by-step instructions

- Prep
- Cook
- Total
- Serves
- 6
Before you start
Before starting, make sure the slow cooker is clean and dry. If using frozen meatballs, there's no need to thaw them; just add them directly to the slow cooker.
Chop the broccoli into bite-sized florets. Measure out the penne and have the Alfredo sauce, cream cheese, and mozzarella ready. No other prep is needed—this recipe is all about simplicity.
Ingredients at a glance (6)
- 2 lb homestyle Italian beef meatballs
- 12 oz penne pasta
- 3 cups fresh broccoli florets
- 1 jar (15 oz) creamy garlic parmesan Alfredo sauce
- 8 oz block cream cheese, softened
- 2 cups shredded whole-milk mozzarella
Instructions
Layer and Cook
- Layer the ingredientsPlace the beef meatballs in an even layer in the bottom of a 6-quart slow cooker. Add the penne pasta and broccoli florets on top. Pour the Alfredo sauce over everything, making sure the pasta and broccoli are mostly covered. Place the block of cream cheese in the center, then sprinkle the shredded mozzarella over the top.Look for The slow cooker should be about three-quarters full, with the cream cheese sitting on top of the sauce.Tip No need to stir before cooking; the layers will meld as it cooks.
- Cover and cook on lowCover the slow cooker with the lid. Cook on low for 4 to 5 hours, or until the pasta is tender and the meatballs are cooked through. Do not lift the lid during the first 3 hours to keep the heat steady.Look for The aroma of garlic and cheese will fill the kitchen after a couple of hours.Safe temperature 160°F (71°C) internal temperature (ground meat)Tip If the slow cooker runs hot, check at the 3-hour mark to avoid overcooked pasta.
At the end of this phase, the slow cooker should be filled with the layered ingredients. The sauce should be bubbling gently around the edges, and the aroma of garlic and cheese will start to fill the kitchen.
The meatballs should be cooked through, and the pasta should be tender. The cream cheese should be mostly melted, and the mozzarella should be fully incorporated into the sauce.
Stir and Finish
- Stir and check the meatballsAfter 4 hours, stir the mixture gently to combine the melted cream cheese and mozzarella into the sauce. Check that the meatballs are cooked through by inserting an instant-read thermometer into the center of a meatball; it should read at least 160°F (71°C).Look for The sauce should be creamy and the cheese fully melted, with no visible chunks of cream cheese.Safe temperature 160°F (71°C) internal temperature (ground meat)Tip If the sauce seems thin, let it cook uncovered for 15–20 minutes to thicken.
- Adjust seasoning and consistencyTaste the sauce and add salt and pepper if needed. If the pasta is too al dente, cover and cook for another 15 minutes. If the sauce is too thick, stir in a splash of warm water or milk.Look for The sauce should coat the back of a spoon.Tip Be careful with salt as the Alfredo sauce and cheese add saltiness.
After stirring, the sauce should be smooth and creamy, with no visible chunks of cream cheese. The pasta should be coated evenly, and the meatballs should be glistening. The broccoli should be tender but still bright green. The mixture should be hot and steamy, ready to serve.
Serve
- Serve hotSpoon the hot pasta and meatballs onto plates or into bowls. Garnish with extra mozzarella or fresh herbs if desired, though the video serves it plain. Enjoy immediately.Look for The pasta should be steaming and the cheese stretchy.Tip Use a large spoon to get a good mix of meatballs, pasta, and sauce in each serving.
When serving, each plate should have a generous portion of pasta, meatballs, and broccoli, all coated in the creamy Alfredo sauce. The cheese should stretch as you spoon it onto the plate. The dish should look inviting, with the golden hue of the cheese and the green broccoli providing visual contrast.
Common mistakes
One common mistake is lifting the lid too often during cooking, which lets out heat and extends the cooking time. Resist the urge to stir until the pasta is tender. Another mistake is overcooking the pasta, which can make it mushy.
Check the dish at the 4-hour mark and adjust the cooking time accordingly. Also, be careful not to add too much salt, as the Alfredo sauce and cheese are already salty. Finally, don't overcrowd the slow cooker—if it's too full, the ingredients may not cook evenly.
How to tell it’s done
The dish is done when the pasta is tender and the meatballs are cooked through. To check the meatballs, insert an instant-read thermometer into the center of one; it should read at least 160°F (71°C).
The sauce should be creamy and the cheese fully melted, with no visible lumps of cream cheese. If the sauce seems too thin, let it cook uncovered for 15–20 minutes to thicken. The broccoli should be tender-crisp, not mushy.
- Ground meat: 160°F (71°C) in the thickest part
Up next · Part 3 of 3
4 variations · storage & make-ahead · 5 answers · printable card
Tips, FAQ & printable recipe (Part 3)← Back to the ingredients (Part 1)