
This meal totally came to the rescue during one of those nonstop weeks where all our schedules were wild. I just tossed ground beef, pasta, chili beans, and tons of cheese into my slow cooker and hoped I wouldn’t come home to a kitchen disaster. Instead, what I got was this amazing combo—basically chili and mac n’ cheese got together and made something even better. The crock pot does its thing while you’re out, and you end up with a house that smells awesome and a meal everyone actually wants to eat.
My teenage kid, who usually gives me grief about any kind of food “mashup,” went back for seconds and begged for more next week. My husband got home, took a big whiff, and said it smelled exactly like the kind of food you want after a long day. Even my mother-in-law, who’s usually tough to please, wanted to know how to make it herself.
Inviting Ingredients
- Cooked macaroni: It’s gotta be just a little firm; it keeps cooking in the slow cooker, so it won’t go mushy that way.
- Chili beans: Leave 'em undrained because that saucy stuff packs serious flavor and everything comes together better.
- Diced tomatoes with chilies: Make sure you drain these or it'll get too soupy, but you want that punch of taste.
- Sharp cheddar cheese: Add this on top so it melts and forms that cheesy layer everyone chases.
- Lean ground beef: Definitely brown this first; if you don’t, things get weird and greasy real quick.

Simple Step-by-Step
- Getting Started:
- First, get your macaroni cooking on the stove till it’s barely done—stop just before the directions say it’s done, and then drain. While that’s going, toss your ground beef in a skillet and cook it till you don’t see any pink. Drain the grease off so your slow cooker meal doesn’t get oily. Give both the pasta and beef a minute to cool down before mixing any more.
- Putting Everything Together:
- Grab your slow cooker and mix up the pasta, browned beef, drained tomatoes, undrained chili beans, garlic salt, and chili powder till all the ingredients get spread out evenly. That way, everything heats up at the same pace and you don’t get random clumps of stuff.
- The Cheesy Topper & Cooking:
- Take your shredded cheddar cheese and sprinkle it right on top—don’t mix it in! Let it sit so it melts into one awesome layer while it cooks. Put the lid on and set the cooker to low for about 2 hours, or high for 1 to 1.5 hours. If your slow cooker doesn’t heat evenly, spin the pot around halfway through. When the cheese is melted and everything’s nice and hot, you’re done.
I learned the hard way about overdoing the pasta, so now I always cut a minute off the pasta box instructions and it comes out spot on. Also? Don’t mix the cheese into the pot—just put it on top for the best melt and look.
Fun Swaps & Extras
Switch up the beans—try kidney or black beans if that’s what you’ve got. You can mix in some corn or toss in chopped bell peppers for more color and veggies. If you love heat, go for hot diced tomatoes or add some fresh jalapeños. Got ground turkey? That works too. I’ve done it and nobody noticed the swap.
Easy Storage
This holds up great for about 4 days in the fridge, and somehow tastes even more awesome after sitting overnight. Reheat in the microwave, or give it another chuck into the slow cooker on low. It’ll freeze for up to three months—just know the noodles will be a bit softer after thawing.

This easy crock pot cheddar chili mac is what we end up making again and again when our weeks are nuts. Barely any work, comfy, filling, and the one thing everybody’s always down to eat. Making it reminds me how nice it is to have meals that pretty much fix themselves while you go tackle your day.
Recipe FAQs
- → Should I boil the pasta first?
- Yes, cook it just until slightly firm and then toss it in the crockpot to keep it from turning into mush.
- → Can I swap out the beans for something else?
- Of course! Use whatever beans you like best—black, pinto, or kidney. Just tweak the spices to match your flavor.
- → How do I keep the cheese smooth?
- Stir the cheese in right at the end, letting the heat gently melt it. Don’t leave it cooking too long or it’ll get stringy.
- → What’s the best way to make it spicy?
- Easy! Stir in diced jalapeños, add spicy chili beans, or toss in some extra chili powder or cayenne. Go as bold as you like!
- → How long can I store leftovers?
- Pop leftovers in an airtight container and keep them in the fridge for up to four days. Reheat gently with a splash of water if it looks dry.