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These Slow Cooker stuffed peppers are the weeknight dinner I keep coming back to. Raw halved peppers go straight into the Slow Cooker — no parboiling, no browning the meat — and you end up with something that tastes like you actually fussed over it. Just five ingredients, minimal prep, and dinner practically makes itself.
Why You’ll Love It
Only 5 ingredients — nothing fancy, nothing you have to hunt down at a specialty store
No browning, no parboiling — the raw sausage and peppers go straight into the Slow Cooker and come out perfectly cooked
Hands-off after 10 minutes — assemble the filling, pack the peppers, walk away until dinner
Looks like you fussed — tender peppers, melty cheese, rich sauce pooled at the bottom — it doesn’t look or taste like a shortcut meal
Generous and filling — the sausage-and-rice filling is substantial enough that two halves per person is plenty
A Few Notes on the Ingredients
The bell peppers — get the biggest ones you can find. I tend to grab red or yellow because they’re sweeter and they look prettier on the plate, but green works fine if that’s what’s there or what’s on sale. Don’t stress about color. Whatever’s cheapest is usually what ends up in my Slow Cooker anyway.
For the sausage, I use mild Italian the majority of the time because one of my kids has always been sensitive to heat. But for a crowd that likes heat, hot Italian or a mix of both is great. If you want to go leaner, turkey sausage is a totally legitimate swap — the texture is slightly different, a little more delicate, but the flavor still works well with the marinara.
The rice: I use whatever cooked rice I have. Leftover rice from the night before is honestly ideal here. I’ve also used the microwaveable pouches when I’m really short on time, and there’s no shame in that. Brown rice, white rice, both are fine. I tried cauliflower rice once just to see, and it was… acceptable. I won’t make that swap again by choice.
And the marinara — I lean toward a jar that has some texture and herb flavor already built in. The thin, watery kind can make the filling loose and soggy, which isn’t the goal. A good thick sauce does a lot of work here.
The Ingredients
4 large bell peppers (any color), halved lengthwise and cored
1 pound Italian sausage — mild or hot, casings off if links
2 cups cooked rice — white or brown, day-old leftovers are perfect
2 cups marinara or pasta sauce, divided (one cup in the filling, one poured around)
1 cup shredded mozzarella, divided — half goes in the filling, half melted on top at the end
How to Make It
Start by laying your pepper halves cut-side up in the bottom of your slow cooker. I use a 6-quart, and four large peppers fit snugly in two layers — the bottom two lie flat, the top two lean against the sides a little. Don’t panic if they tilt. They’ll settle as they cook, and honestly the filing stays in better than you’d expect. If yours are particularly round-bottomed, you can nestle them against each other to keep them stable.
In a bowl — and I say a medium bowl but I almost always grab too small a bowl at first and have to transfer, so just use a big one — combine the raw sausage, the cooked rice, one cup of the marinara, and half the mozzarella. Mix it up well. It’s going to look a little sticky and strange and that’s correct. The sausage and the rice sort of become one thing.
Spoon the filling into each pepper half, pressing it down as you go. Pack it in. Don’t be shy about mounding it up a little at the top — it settles during cooking. Pour the remaining cup of marinara sauce over and around everything, letting it pool in the bottom of the slow cooker. That sauce at the bottom becomes this incredible, concentrated, savory liquid by the end of cooking and you want plenty of it.
Cook on low for four to six hours, or on high for somewhere between two and a half and three and a half hours. Every slow cooker runs a little differently — mine runs hot, and I’ve learned to check at the lower end of the range. The peppers should be tender when you press them with a spoon, and if you press a little into the center of the filling, it should feel firm and not at all pink or mushy in a raw way.
About fifteen minutes before you want to eat, scatter the rest of the mozzarella over the tops and put the lid back on. The cheese will melt from the steam alone — you don’t need to run it under a broiler or anything like that.
To serve, I use a large spoon and a spatula working together. It’s a little awkward. I’ve never found a graceful way to do it. You sort of slide the spatula under and scoop with the spoon simultaneously, and you get the pepper out more or less intact most of the time. Then spoon some of that dark, reduced sauce from the bottom over everything.
Swaps and Variations
If you want to go lighter, Chicken sausage and quinoa work well in place of pork sausage and rice — just keep the ratios roughly the same and you’ll be fine.
If you want to sneak more vegetables in without adding more actual ingredients, choose a marinara that already has onions or mushrooms or extra peppers in it — several store brands do this and it just reads as a richer sauce, not a health move, which is perfect.
For a spicier version: hot Italian sausage, a pinch of red pepper flakes in the filling, done. Or both. I’m not going to tell you how to live.
Leftovers
These keep well. I pack the extras into individual containers and they’re genuinely good lunches for the next two days — better than you’d expect for a stuffed pepper that’s been reheated. The microwave works fine; two minutes, covered, maybe a splash of water if the filling looks dry. I’ve tried freezing them, and the texture of the peppers gets a little sad after thawing, so I don’t bother anymore. But refrigerator leftovers are no issue.
Line the slow cooker with a liner if you care about easy cleanup. I should do this every time and I forget about half the time and then stand at the sink scrubbing dried marinara off the sides of the ceramic insert and quietly vow to do better next time.
Serve these with bread if you have it — something that can absorb the extra sauce, which is the best part of the whole situation. A bag salad from the fridge. Maybe some roasted frozen vegetables if you’re feeling ambitious, though I usually am not. It’s dinner. It’s a real, warm, sit-down dinner on a weeknight when you had seventeen other things going on. That’s enough.