Mac and Cheese Meatloaf Casserole–two favorite dinners combined into one amazing dish! Meatloaf is baked with macaroni and cheese on top. The Instant Pot speeds up the prep process.

Mac and Cheese Meatloaf Casserole
Don’t knock it until you try it! This mac and cheese meatloaf casserole was there one minute and completely devoured the next! We all agreed that it was delicious and something we should have often. To make this casserole you will start by patting meatloaf mixture into an 8×8 inch baking dish and popping it into the oven. While the meatloaf bakes you’ll make fast and easy macaroni and cheese in your Instant Pot. The two will get done close to the same time. At that point the macaroni and cheese is spooned on top of the meatloaf and then baked for a few more minutes. The cheesy macaroni cheese pairs perfectly with the baked meatloaf.
A few notes…
- This is an easy recipe to double and bake in a 9×13 inch dish if you’re feeding a crowd. Double all the ingredients and keep the cooking time the same.
- The meatloaf recipe I used is quick and easy. It only has 6 ingredients. If you prefer you can use your own favorite meatloaf recipe.
- I suggest using a lean or extra lean ground beef (I used 90% lean) so that the meatloaf doesn’t get too greasy.
- You can use another type of pasta like shells, cavatappi or bowties in the place of elbow macaroni.
- Use your favorite barbecue sauce. I like Sweet Baby Ray’s BBQ sauce the best.
- I like using sharp or extra sharp cheddar for maximum cheese flavor.

You’ll meatloaf recipes you’ll like…
Instant Pot Traditional Meatloaf
Instant Pot Meatloaf And Baked Potatoes
Instant Pot Bacon Barbecue Meatloaf With Mashed Potatoes

More mac and cheese recipes you’ll love…
Instant Pot Broccoli Chicken Mac And Cheese
Instant Pot Spinach Artichoke Mac And Cheese
Instant Pot 3-Cheese Macaroni And Cheese
Garlic Mac And Cheese Sandwich
Instant Pot Bacon Barbecue Meatloaf With Mashed Potatoes
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Mac and Cheese Meatloaf Casserole
- Prep Time: 20 minutes
- Total Time: 1 hour
- Yield: 5–6 servings 1x
Ingredients
- 15 Ritz crackers
- 1 pound lean ground beef (I used 90/10)
- 1 (1 oz) packet onion soup mix
- 1 egg
- 1/4 cup ketchup
- 1/2 cup bbq sauce, divided
- 2 cups water
- 8 oz elbow macaroni noodles
- 1 Tbsp butter
- 1 tsp kosher salt
- 1/2 tsp onion powder
- 1/2 tsp garlic powder
- 1/2 tsp pepper
- 1/2 cup milk
- 2 cups shredded sharp cheddar cheese, divided
Instructions
- Preheat oven to 350° F.
- Add Ritz crackers to a medium mixing bowl and smash until they are crumbs (I used a potato masher).
- Add in the beef, onion soup mix, egg, ketchup and ¼ cup of bbq sauce. Mix well with clean hands.
- Pat the mixture into an 8×8 inch baking dish.
- Bake for 30 minutes.
- While meatloaf is baking make the mac and cheese in the Instant Pot. Pour 2 cups water into Instant Pot. Sprinkle in the macaroni. Add in the butter, kosher salt, onion powder, garlic powder and pepper.
- Cover Instant Pot and secure the lid. Make sure valve is set to sealing. Set the manual/pressure cook button to 3 minutes. When time is up let pot sit for 10 minutes and then move valve to venting. Stir in the milk and 1 ½ cups of the cheese.
- Once the meatloaf is done baking remove it from the oven. Spread remaining ¼ cup of bbq sauce over the top of meatloaf. Scoop the macaroni and cheese over the top. Sprinkle the remaining ½ cup of cheese on top the macaroni. Bake for 15 minutes.
- Serve and enjoy!
- Category: Beef
- Method: Instant Pot and Oven

*Karen Petersen is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to amazon.com.
Your recipe did it again!!! Thank you so much for all the ideas, the teenager really liked this one!!! I kind of wish I could find a bbq sauce without all the sugar and high fructose corn syrup, but I’ll search for something soon. 🙂
★★★★★
I think Stubbs has a good low sugar BBQ sauce!
Karen you are a genius. I all ready love the Shepherds Pie made in the Instant Pot. — it just gets better and better. Thank you from Jim Bob
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Thanks Jim Bob!!
Sound s great will make this soon. Used to use Sweet Baby Ray’s, until I read the label – full of high fructose corn syrup, so bad for you.
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Try using one of the low sugar bbq sauces! They have a lot of great options on the market now.
Haven’t tried it yet, but when I do, I think I’ll sprinkle some more crushed ritz crackers over the top of the cheese just before sticking it back in the oven for the last time, and maybe sprinkle chopped green onions over the top after I pull it out.
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Those are perfect ideas Alan!