If your idea of a good weeknight dinner is “minimal chopping, one pan, and something the whole family will actually eat,” this one pot chicken fajita rice is about to become your new go-to. It’s got all the smoky, zesty flavor of a Tex-Mex fajita night, but none of the juggling multiple pans, warming tortillas, and prepping five different toppings. Everything, and I mean everything, cooks in a single pan, which means dinner is on the table fast and the washing up is almost nonexistent.
I love recipes like this one because they lean on a few clever shortcuts (hello, microwave rice) without sacrificing flavor. The chicken gets seared with peppers and onion until everything picks up a bit of color, a packet of fajita seasoning does the heavy lifting on flavor, and a good glug of passata turns it into something rich and saucy rather than dry. Melt some cheese over the top, add a spoonful of homemade guacamole, and you’ve got a proper dinner that tastes like way more effort went into it than actually did.
If you’re already a fan of quick chicken and rice dinners, you’ll want to bookmark this one right alongside my Mexican chicken rice bake and cheesy queso chicken and rice — they’re all built on the same “one pan, big flavor” philosophy.
Why This One Pot Fajita Rice Works So Well
- It’s genuinely one pot. No draining rice separately, no dirtying a grill pan for the chicken. Everything happens in the same pan from start to finish (aside from a quick trip under the grill).
- Microwave rice is the secret weapon. It’s already cooked, so all you’re doing is warming it through and letting it soak up the passata and seasoning. That cuts a solid 15-20 minutes off your cooking time compared to cooking rice from scratch.
- It’s endlessly adaptable. Swap the veggies, adjust the spice level, or make your own fajita seasoning blend if you prefer to control the salt.
- It reheats beautifully. This is one of those dishes that’s just as good, if not better, the next day for lunch.
What You’ll Need
Here’s what goes into the pan (this makes enough for 4 people):
- 600g chicken, diced – I like using chicken breast for this, but thigh works just as well if you prefer something a little juicier.
- 1-2 peppers, sliced – any color works, though a mix of red and green gives you that classic fajita look.
- 1-2 onions, sliced – white or red onion both work fine here.
- 2 packets of microwave Mexican rice – this is what makes the whole thing come together so quickly. If you can’t find a Mexican-flavored one, plain microwave rice works too, since the fajita seasoning and passata do most of the flavoring anyway.
- 400g passata – this is what turns the rice saucy rather than dry and clumpy.
- 1 packet fajita seasoning – store-bought is quickest, though homemade works if you like to control the spice level.
- 80g reduced fat grated cheese – melted on top at the end for that essential gooey finish.
- 40g nachos – for scooping and crunch on the side.
- 1 avocado – mashed into a quick guacamole.
- Salt, pepper, chilli, and lemon juice – to season the avocado and the rest of the dish to taste.
If you love building your own fajita-style bowls, you might also enjoy my chipotle chicken rice bowl for another take on the same flavor profile, just with a smokier edge.
How to Make It
Start with the chicken and veg. Get a large frying pan or sauté pan nice and hot, then add your diced chicken along with the sliced peppers and onion. Let everything fry together until the chicken is nicely browned and the vegetables have started to soften and pick up some color. Once that’s happened, stir in your fajita seasoning and keep cooking until the chicken is completely cooked through and coated in all that spice.
Bring in the rice and passata. Break up the rice from the microwave packets with your hands or a spoon before adding it straight into the pan, cold, along with the passata. Give everything a really good mix so the rice is evenly coated in that saucy, seasoned base, then bring it up to a boil. Once it’s bubbling, turn the heat down and let it simmer gently for about 10 minutes so the flavors can properly come together.
Make your guacamole while it simmers. This is the perfect window to preheat your grill and knock together a quick guac. Mash the avocado in a bowl and stir through a little salt, pepper, a pinch of chilli, and a squeeze of lemon juice. Set it aside; it’ll keep just fine while the rice finishes cooking.
Melt the cheese. Once your 10 minutes is up, check whether your pan is oven and grill-safe. If it is, simply scatter the cheese straight over the top. If not, transfer the chicken and rice mixture into an oven-proof dish first, then sprinkle over the cheese. Pop it under the grill just until the cheese is melted and bubbling.
Serve it up. Divide the fajita rice between four plates or bowls, then serve alongside your nachos and that fresh guacamole for scooping and dipping.
A Few Tips Before You Start
- Don’t skip breaking up the rice. Microwave rice packets tend to clump together, so take a minute to loosen the grains before they go into the pan. This helps everything cook evenly and stops you from ending up with dense little rice balls throughout the dish.
- Keep an eye on it under the grill. Grills work at wildly different intensities, so stay close by once the cheese goes on. It only takes a minute or two to go from perfectly melted to overly browned.
- Adjust the passata to your taste. If you like your fajita rice a little drier and more separate-grained, you can use slightly less passata. If you prefer it saucier, feel free to add a splash more.
- Make your own seasoning if you want more control. A simple mix of paprika, cumin, garlic powder, onion powder, chilli powder, and a pinch of salt works well if you’d rather skip the store-bought packet.
Serving Suggestions
This one is pretty much a full meal on its own thanks to the protein, rice, and veg all cooked together, but a few extras take it from good to great. A dollop of soured cream on the side cools things down nicely if you’ve gone heavy on the chilli, and a scattering of fresh coriander adds a bit of brightness. If you want to bulk it out further for a bigger crowd, warm tortillas on the side let everyone build their own little fajita wraps straight from the pan.
Got leftover fajita rice? It works brilliantly folded into a wrap the next day, similar to how I use leftovers in my high-protein chicken fajita wraps, or spooned over a bed of greens for a quick lunch bowl. It’ll keep in an airtight container in the fridge for up to 3 days, and reheats well in the microwave with a small splash of water stirred through to loosen it back up.
If you’re planning meals ahead for the week, this recipe also scales up nicely for batch cooking. Check out my high-protein chicken fajita meal prep bowls for ideas on portioning it out, and my one pot tandoori chicken rice if you’re in the mood to switch up the flavor profile on a different night this week while keeping the same easy, one-pan method.
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