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• What Is Simple Ground Beef Casserole?
• Tips for Cooking and Prepping
• Recipe Variations and Substitutes
• What to Serve with Ground Beef Casserole
• Storing, Make-Ahead, and Freezing Tips
• FAQs
• Simple Ground Beef Casserole Recipe

When the week is long and the grocery budget is tight, this simple ground beef casserole is the dinner you’ll want on repeat. It’s just pasta, beef, marinara, and cheese baked together into one cozy, crowd-pleasing dish that comes together in about 35 minutes flat.

What Is Simple Ground Beef Casserole?

Simple ground beef casserole is exactly what it sounds like: a no-fuss bake that combines browned ground beef, marinara sauce, and penne pasta, all topped with a blanket of melted cheddar cheese. Think of it as a shortcut baked pasta or a lazy-night lasagna cousin, minus the layering and fuss.

It’s the kind of recipe that shows up in family cookbooks and church potlucks because it’s forgiving, filling, and made from ingredients almost every household already has on hand. There’s no fancy technique required, just browning meat, boiling pasta, and combining everything in one baking dish before it goes into the oven.

Tips for Cooking and Prepping

#1: Undercook your pasta slightly

Boil the penne for about 10 minutes so it’s just shy of done. It will finish cooking in the oven, and this keeps it from turning mushy or overly soft under the cheese.

#2: Buy ground beef in bulk and freeze extra

Ground beef is often cheaper per pound when purchased in the larger family packs. Portion it into 1-pound bags in the freezer so you always have exactly what this recipe calls for on hand without overspending.

#3: Drain excess fat for a cleaner bake

Lean ground beef still releases some fat as it cooks, so spoon out any excess before adding the marinara sauce. This keeps the casserole from turning greasy once it’s baked.

#4: Taste and season before baking

Marinara sauces vary a lot in saltiness and sweetness, so taste the beef mixture before you combine it with the pasta and adjust the salt and pepper accordingly.

#5: Broil for a golden cheese top

A quick few minutes under the broiler after baking gives the cheddar those irresistible browned, bubbly spots without drying out the casserole underneath.

Recipe Variations and Substitutes

This casserole is endlessly adaptable to whatever you have in the fridge or pantry. Swap the penne for rotini, elbow macaroni, or any short pasta shape you already have on hand, and use whatever shredded cheese is cheapest that week, mozzarella and Monterey Jack both work great. You can also stir in a handful of frozen mixed vegetables, spinach, or diced bell pepper to stretch the meal and sneak in extra nutrition, or swap half the ground beef for cooked lentils or extra beans to lower the cost per serving even further.

What to Serve with Ground Beef Casserole

Keep sides simple and budget-friendly, since the casserole is already a full meal on its own. A basic green salad with vinaigrette, steamed or roasted frozen vegetables, or warm garlic bread all pair perfectly and round out the plate without adding much to your grocery bill.

Storing, Make-Ahead, and Freezing Tips

Leftovers keep well in an airtight container in the fridge for up to 4 days and reheat beautifully in the microwave or a covered dish in the oven. To freeze, cool the casserole completely, portion it into freezer-safe containers, and freeze for up to 3 months; you can also assemble the whole casserole ahead of time, refrigerate it unbaked for a day, and pop it straight in the oven when you’re ready to eat.

FAQs

Can I make this ground beef casserole ahead of time?

Yes, you can assemble the entire casserole up to the baking step, cover it tightly, and refrigerate for up to 24 hours. When you’re ready to bake, just add a few extra minutes to the cook time since it will be starting cold.

Can I freeze ground beef casserole?

Absolutely. Bake it as directed, let it cool completely, then wrap portions tightly and freeze for up to 3 months. Thaw overnight in the fridge and reheat covered in a 350F oven until warmed through.

What can I use instead of marinara sauce?

Any jarred pasta sauce works fine here, including plain tomato sauce with added Italian seasoning, or even a can of diced tomatoes blended smooth in a pinch. Use whatever sauce is on sale for the best savings.

Can I use a different ground meat?

Yes, ground turkey or ground chicken can be substituted in equal amounts if you prefer a leaner option, though ground beef gives the richest, most classic flavor for this casserole.

Why is my casserole watery?

This usually happens if the pasta wasn’t drained well or the beef mixture had too much fat left in it. Be sure to drain the penne thoroughly and spoon off excess grease from the skillet before combining everything.

Simple Ground Beef Casserole Recipe

Prep time: 10 min | Cook time: 25 min | Total time: 35 min | Servings: 6

Ingredients

For the Pasta

• 1 pound uncooked penne

For the Beef Mixture

• 1 tablespoon olive oil
• 1 pound lean ground beef
• 1/2 medium onion, chopped
• 1 clove garlic, minced
• 1.5 cups marinara sauce
• Salt & pepper, to taste

For Topping

• 1.5 cups shredded cheddar cheese

Instructions

1. Preheat your oven to 400F and move the rack to the middle position. Grease a 9×13 baking dish (a quick spray of nonstick cooking spray works great).
2. Bring a large pot of salted water to a boil for the penne. Cook it for about 10 minutes so it’s slightly underdone and won’t turn mushy once baked.
3. Add the olive oil, ground beef, and chopped onion to a skillet. Sauté over medium-high heat, breaking up the meat as it cooks, for about 10 minutes. Once it’s going, stir in the minced garlic. Spoon out any excess fat if needed.
4. Stir in the marinara sauce and warm everything through. Taste and season with salt and pepper as needed.
5. Drain the pasta and pour it into the prepared baking dish. Pour the beef mixture over top and toss until well combined. Top with an even layer of shredded cheddar cheese (stir in an extra 1/2 cup of cheese first if you want it extra cheesy).
6. Bake uncovered for 10 minutes, until the cheese is melted. For a browned, bubbly top, broil for a few extra minutes if desired. Serve immediately.

For an even more budget-friendly version, swap in whatever short pasta and shredded cheese you already have on hand; both work just as well as penne and cheddar.