This 5-ingredient oven fajita chicken is the kind of weeknight shortcut I wish I’d had when my kids were little and running in and out of the house like a pack of colts. Instead of fussing with raw chicken and a dozen spices, you just scatter frozen chicken fajita strips on a metal baking sheet, toss on a few colorful vegetables, drizzle with oil and seasoning, and let the oven do the work. It has all the spirit of Tex-Mex fajitas that made their way up through the Midwest in the ’80s—sizzling pans at the local family restaurant and that wonderful peppery smell—only this version is pared down for real life. Simple, cheap ingredients, one pan, and a hot oven give you a meal so tasty your friends will be asking how you pulled it off so fast.
Serve this oven fajita chicken tucked into warm flour or corn tortillas with a squeeze of lime and a dollop of sour cream or plain yogurt. It’s also lovely spooned over rice or buttered noodles if you’re feeding heartier appetites, or over a bed of crisp lettuce for a lighter supper. A side of canned corn warmed with a pat of butter, or some simple black beans seasoned with salt and garlic, rounds things out nicely. If you like, set out a small dish of shredded cheese and some salsa or hot sauce so everyone can dress their own plate just the way they like it.
5-Ingredient Oven Fajita ChickenServings: 4
Ingredients
1 pound frozen chicken fajita strips (seasoned, straight from the freezer)
2 cups sliced purple onion (about 1 large onion)
2 cups chopped purple cabbage (or other purple vegetables, bite-size pieces)
3 tablespoons vegetable or canola oil
1 tablespoon taco or fajita seasoning blend (store-bought, any inexpensive brand)
Directions
Preheat your oven to 425°F (220°C). Place a large metal baking sheet on the middle rack while the oven heats so it gets good and hot.
While the oven preheats, slice the purple onion into thin strips and chop the purple cabbage (or other purple vegetables) into bite-size pieces so they’ll roast quickly.
Carefully remove the hot metal baking sheet from the oven and place it on a heatproof surface. Scatter the frozen chicken fajita strips in an even layer over the sheet—no need to thaw them.
Add the sliced purple onion and chopped purple cabbage to the baking sheet, tucking the vegetables in and around the frozen chicken strips so everything is spread out but still cozy together.
Drizzle the oil evenly over the chicken and vegetables. Sprinkle the taco or fajita seasoning over the top, then use a spatula or tongs to gently toss everything right on the baking sheet until the chicken and vegetables are lightly and fairly evenly coated.
Spread the mixture back into a single layer so the pieces have a little breathing room. This helps them brown instead of steam.
Return the baking sheet to the oven and bake for 18–22 minutes, stirring once halfway through, until the chicken is sizzling hot and the vegetables are tender with some browned edges. If your chicken strips are thick or very icy, you may need a few extra minutes.
Check that the chicken is heated through to at least 165°F (74°C) in the center of the thickest piece. When everything is hot and slightly caramelized around the edges, remove the pan from the oven.
Taste and add a pinch of extra salt or seasoning if needed. Serve the oven fajita chicken straight from the pan while it’s good and hot, with warm tortillas, rice, or your favorite fixings.
Variations & Tips
You can play with this basic pan of oven fajita chicken the way farm cooks have always stretched what they have on hand. Swap the purple cabbage for any other purple vegetables you find on sale—thinly sliced purple bell peppers, quartered baby eggplant, or even wedges of red (purple) onion alone will give you that same vibrant look. If you only have plain frozen chicken strips instead of seasoned fajita strips, toss everything with a little extra taco or fajita seasoning and a pinch of salt to make up the difference. For more vegetables, add sliced green or red bell peppers or zucchini to the pan; just keep the total amount of vegetables around 4 cups so they still roast nicely. For a milder dish, use half the seasoning and let folks add hot sauce at the table. If you’re cooking for one or two, halve the recipe and use a smaller baking sheet so the food doesn’t spread too thin and dry out.
Food safety tips: Keep the frozen chicken fajita strips in the freezer until you’re ready to cook, and don’t let them sit out on the counter for long. Always cook frozen chicken until it is piping hot all the way through and reaches at least 165°F (74°C) in the center; if you don’t have a thermometer, cut into a thick piece to be sure it’s steaming hot with no cold spots. Use a sturdy metal baking sheet rather than glass, since sudden temperature changes can crack glass in a hot oven. Handle the preheated pan with heavy oven mitts and keep it away from the edge of the counter so no one bumps into it. Refrigerate leftovers within 2 hours, and reheat them thoroughly before eating—either in a hot skillet, the oven, or the microwave—until steaming throughout.
