For longer storage, this casserole freezes beautifully. After cooling completely, you can freeze the entire casserole in its baking dish (if freezer-safe and tightly covered) or portion it out into individual freezer-safe containers. When freezing the whole casserole, make sure it’s wrapped very well to prevent freezer burn. It can be stored in the freezer for up to 2-3 months. When you’re ready to enjoy, thaw the frozen casserole in the refrigerator overnight before reheating.
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To reheat the entire casserole from the refrigerator, preheat your oven to 350°F (175°C). Cover the casserole dish loosely with aluminum foil to prevent the top from browning too much or drying out, and bake for 20-30 minutes, or until heated through and bubbly. If you prefer a crisper topping, remove the foil for the last 5-10 minutes of reheating. For individual portions, you can reheat them in the microwave on medium power for 2-4 minutes, stirring halfway through, until hot. Alternatively, individual portions can be reheated in a conventional oven or a toaster oven at 350°F (175°C) for 10-15 minutes. If reheating from frozen, it’s best to thaw first, then follow the reheating instructions for refrigerated casserole, adding extra time as needed. Always ensure the internal temperature reaches 165°F (74°C) for food safety.
Frequently Asked Questions
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Quick cooking tips
What kind of ground meat is best for the meatballs?
For the juiciest and most flavorful meatballs, we recommend using an 80/20 ground beef blend (80% lean, 20% fat). The fat content helps keep the meatballs moist and tender during baking. You could also use a mix of ground beef and ground pork for added depth of flavor, or even ground turkey for a leaner option, though you might want to add a bit more moisture like grated onion or a touch of olive oil to keep them from drying out.
Can I make this casserole ahead of time?
Absolutely! This casserole is an excellent make-ahead meal. You can assemble the entire casserole, including the meatballs, macaroni, and cheese sauce, and layer it in the baking dish. Cover it tightly with plastic wrap and refrigerate for up to 24 hours before baking. When you’re ready to bake, remove it from the refrigerator about 30 minutes before baking to allow it to come closer to room temperature, then bake as directed, adding an extra 10-15 minutes to the baking time if it’s still quite cold.
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How can I make the cheese sauce extra smooth and lump-free?
The key to a smooth cheese sauce is to make a proper roux (butter and flour paste) and gradually whisk in warmed milk. Ensure the milk is at least room temperature, preferably warm, as cold milk can cause lumps when added to a hot roux. Whisk continuously as you add the milk and while the sauce thickens. When adding the cheese, do so over low heat and stir until fully melted before adding more. Using freshly grated cheese instead of pre-shredded also helps, as pre-shredded cheeses often contain anti-caking agents that can make the sauce grainy.