Sheet Pan Chicken Al Pastor Tacos with Roasted Pineapple and Onion

Traditional al pastor is usually made with pork, stacked and cooked on a vertical spit, shaved off in thin slices as it cooks. It’s hard to replicate that exact setup at home, but this version leans into what’s practical. I make it with chicken thighs instead, which still give you that rich flavor while keeping things a bit lighter.

This recipe is inspired by those classic flavors but built for a weeknight. Everything goes onto a single pan, and the oven does the work. The marinade pulls together pineapple or orange juice, spices, and a bit of heat from chipotle, giving you that familiar sweet and spicy balance without needing anything complicated.

One of my favorite parts here is how the pineapple behaves in the oven. It softens, then edges toward caramelized, picking up a little char if you let it go long enough. The onions cook down alongside the chicken, turning slightly sweet and mellow, which balances out the spice. It’s a small detail, but it makes the whole thing feel more cohesive, less haphazard.

Once it’s done, it’s just a matter of piling everything into warm tortillas. A little cilantro on top, maybe some extra onion if you like that bite, and a squeeze of lime. It’s simple food, but it lands well, especially when you want something that feels a bit more considered without taking up your entire evening.

How to Make Easy Oven-Baked Chicken Al Pastor

This Chicken al pastor recipe is adapted for home cooking using an oven and simple ingredients. The marinade combines citrus, vinegar, and spices for depth, while pineapple adds natural sweetness during roasting.

Ingredients

For the marinade:

• ½ cup pineapple juice or orange juice
• 2 tbsp apple cider vinegar
• 2 tbsp brown sugar
• 3–4 garlic cloves, minced
• 1–2 chipotle peppers in adobo, finely chopped
• 1 tbsp chili powder
• 1 tsp ground cumin
• 1 tsp dried oregano
• 1–2 tbsp achiote sauce or 1 tsp annatto powder
• 2 tbsp oil
• Salt and black pepper to taste

For the sheet pan:

• 1.5–2 lbs boneless chicken thighs, cut into bite-sized pieces
• 1 small red onion, sliced
• 1–1.5 cups fresh pineapple chunks

For serving:

• Warm tortillas
• Fresh cilantro, chopped
• Extra diced onion (optional)
• Lime wedges

Prep / Mise en Place

• Cut chicken into bite-sized pieces
• Slice red onion
• Cut pineapple into chunks if using fresh
• Mince garlic and chop chipotle peppers
• Measure out marinade ingredients

Instructions

1. In a large bowl, whisk together pineapple (or orange) juice, apple cider vinegar, brown sugar, garlic, chipotle peppers, chili powder, cumin, oregano, achiote, oil, salt, and pepper.
2. Add the chicken pieces to the marinade and toss to coat well. Cover and refrigerate for at least 1 hour.
3. Preheat oven to 425°F (220°C). Line a sheet pan with parchment or foil if desired.
4. Spread the marinated chicken evenly on the sheet pan. Scatter sliced onions and pineapple chunks over the top.
5. Roast for 20–30 minutes, stirring once halfway through, until the chicken is cooked through and edges begin to caramelize.
6. For extra color, broil for 2–3 minutes at the end.
7. Spoon into warm tortillas. Top with cilantro, extra onion if using, and a squeeze of lime.

Serving Suggestions

• Serve as tacos with corn or flour tortillas
• Pair with rice and beans for a full meal
• Add to bowls with lettuce, avocado, and salsa
• Serve with grilled vegetables or a simple slaw

The combination of roasted pineapple and seasoned chicken makes this recipe flexible for different meals. It works just as well for tacos as it does for bowls or leftovers.