Alright, let’s talk about this Instant Pot casserole thing. I kept seeing folks online trying it out, and honestly, I was scratching my head. A casserole? In a pressure cooker? Seemed kinda off. Casseroles, to me, always meant that bubbly, cheesy top you get from the oven. But, the idea of not heating up the whole kitchen, especially during warmer months, got me thinking. Plus, I like messing around with my Instant Pot, seeing what it can actually do beyond yogurt and hard-boiled eggs.

Getting Started – The Experiment
So, I decided one evening, why not just try it? Didn’t even follow a specific recipe religiously at first. I figured, how hard could it be? It’s just layering stuff and cooking it, right? I grabbed some basics I had lying around:
- Some leftover cooked chicken, shredded it up.
- Uncooked pasta – elbow macaroni seemed sturdy enough.
- A can of diced tomatoes, didn’t drain ’em.
- Some frozen mixed veggies – peas, carrots, corn. The usual suspects.
- Broth, maybe chicken or vegetable, can’t remember which I grabbed first.
- Cheese, definitely needed cheese. Had some cheddar.
- Onion and garlic powder, salt, pepper – gotta have some flavor.
Into the Pot It Goes
First thing, I just dumped everything into the Instant Pot liner. Seriously. The dry pasta, the chicken, the veggies, the canned tomatoes. Poured in enough broth just to barely cover the pasta. Gave it a quick, half-hearted stir. Sprinkled on the seasonings. Important part: I didn’t put the cheese in yet. Figured that would turn into a gloopy mess under pressure.
Locked the lid, made sure the valve was set to ‘Sealing’. Then came the button pushing. I just winged it, hit the ‘Pressure Cook’ (or ‘Manual’ on older models) button. Set the timer for about 5 minutes. Pasta usually cooks fast, and I figured the pressure would speed it up even more. Honestly, it felt like a total gamble.
The Waiting Game and The Reveal
The pot did its thing, came to pressure, counted down. Once it beeped, I was impatient. Did a quick release right away. Stood back, obviously. That steam is no joke. Once the pin dropped, I opened the lid.
Okay, it looked… wet. Like a pasta soup. Not quite the casserole vibe I was picturing. But the pasta was cooked, the veggies were tender. So, progress! I gave it a good stir. Then I dumped in a hefty amount of the shredded cheddar cheese. Stirred it again until it melted into the sauce, making it thicker and creamier. Now we were getting somewhere.
Finishing Touches (Kind Of)
It still didn’t have that baked top. I knew the Instant Pot alone wouldn’t do that. Some people have those fancy air fryer lids, I don’t. So, I just scooped it into bowls right from the pot. It tasted pretty good! Cheesy, comforting, cooked super fast. Was it the best casserole I’ve ever made? Nah. The texture is different, softer, maybe a bit more like a thick stew than a baked dish.
Since that first try, I’ve done it a few more times. Played around with rice instead of pasta (that needs more liquid and a longer cook time, maybe 10-12 minutes plus natural release). Tried adding cream cheese or a can of cream soup for extra richness. Found that layering ingredients sometimes works better than just dumping and stirring, especially with rice, putting it on the bottom.

My Takeaway
So, the verdict? Instant Pot casseroles are a real thing. They’re fast. They’re convenient. They keep the kitchen cool. But don’t expect them to be exactly like your oven-baked versions. The texture is the main difference. You lose the crispy edges and bubbly top unless you transfer it to an oven-safe dish and broil it, or use one of those special lids. For a quick weeknight meal when you don’t want a lot of fuss or heat? Yeah, it works. It’s another tool in the cooking arsenal. Just gotta manage your expectations and maybe get creative with toppings after it’s cooked.