Teriyaki Chicken and Pineapple Foil Packets

Teriyaki chicken and pineapple foil packets combine tender chicken, sweet pineapple, and crisp-tender vegetables with a savory-sweet teriyaki glaze. Each portion cooks in its own sealed packet on the grill or in the oven, making this an easy weeknight meal with little cleanup.

Ingredients

1½ lb (680 g) boneless, skinless chicken breasts, cut into 1-inch (2.5 cm) pieces
1 cup (240 ml) teriyaki sauce, divided; use a gluten-free version if needed
2 cups (330 g) fresh pineapple chunks, or drained canned pineapple chunks
1 medium red bell pepper, about 6 oz (170 g), cut into 1-inch (2.5 cm) pieces
1 small red onion, about 5 oz (140 g), cut into wedges
1 medium zucchini, about 8 oz (225 g), halved lengthwise and sliced ½ inch (1.25 cm) thick
1 tablespoon (15 ml) neutral oil, such as avocado or canola oil
¼ teaspoon fine salt (1.5 g), or to taste
¼ teaspoon black pepper (0.5 g)
2 tablespoons (6 g) sliced scallions, for serving
1 teaspoon (3 g) sesame seeds, for serving, optional
Cooked rice, for serving, optional

Instructions

Heat the cooking surface. For a grill, preheat to medium-high, about 400°F (200°C). For the oven, heat to 425°F (220°C). Cut four sheets of heavy-duty foil, each about 18 inches (46 cm) long. If using regular foil, use two sheets per packet to help prevent leaks.
Prepare the chicken and vegetables. Pat the chicken dry. In a large bowl, toss the chicken, pineapple, bell pepper, onion, and zucchini with the oil, salt, and black pepper. Add ½ cup (120 ml) of the teriyaki sauce and toss to coat. Keep the remaining sauce separate so it does not touch raw chicken.
Fill the packets. Divide the mixture evenly among the foil sheets, placing it in the center of each. Bring the long sides together and fold them down tightly, then fold in the ends to seal. Leave a little room inside each packet for steam to circulate, but make sure the seams are closed.
Cook. Put the packets seam-side up on the grill grates and close the lid, or arrange them on a rimmed baking sheet in the oven. Cook for 18–22 minutes, turning the packets once halfway through if grilling. Cooking time varies with chicken-piece size and equipment, so check the thickest pieces with an instant-read thermometer. The USDA FSIS safe minimum internal temperature for poultry is 165°F (74°C); check that every packet reaches it.
Rest and serve. Transfer the packets to a tray and let them stand, unopened, for 3 minutes. Open carefully, directing the steam away from your face and hands. If desired, spoon the remaining teriyaki sauce into a small saucepan and bring it to a boil before drizzling it over the cooked food. Finish with scallions and sesame seeds, and serve with rice if you like.

Tips

Cut evenly. Keep the chicken pieces close to 1 inch (2.5 cm) so they cook at the same rate. Large or uneven pieces can remain undercooked while the vegetables soften too much.
Use heavy-duty foil and seal well. A double layer of standard foil is a practical substitute. Avoid sharp bones or overfilling, which can puncture a packet or prevent it from closing.
Choose pineapple to suit your schedule. Fresh pineapple gives a brighter, firmer bite; canned pineapple is convenient and works well when thoroughly drained. Avoid adding extra juice, which can make the packets watery.
Keep raw and cooked sauce separate. Do not brush cooked chicken with sauce that has contacted raw poultry unless you first bring that sauce to a boil. For a less salty result, choose a reduced-sodium teriyaki sauce and omit or reduce the added salt.

Serving Suggestions

Serve the chicken and vegetables over steamed jasmine or brown rice, spooning the juices from each packet over the top. The packets also pair well with rice noodles, quinoa, or a simple green salad. For a fuller spread, add steamed broccoli or cucumber salad; keep any side dishes separate rather than putting them into the packets, where they may cook at a different rate.

Variations

Use chicken thighs: Boneless, skinless thighs can replace the breasts in the same quantity. Cut them into similarly sized pieces and still confirm they reach 165°F (74°C).

Swap the vegetables: Try thinly sliced carrots, snap peas, or mushrooms in place of the zucchini or bell pepper. Slice firm vegetables thinly so they become tender in the same cooking time. Avoid very watery vegetables in large amounts, as they can dilute the sauce.

Add a little heat: Stir ¼–½ teaspoon (0.5–1 g) red pepper flakes into the sauce, or serve sliced fresh chili on the side.

Make it gluten-free: Use teriyaki sauce labeled gluten-free, since many standard sauces contain soy sauce made with wheat. Check the labels on all packaged ingredients.

Storage and Reheating

Open any remaining packets and transfer the food to shallow, covered containers. Refrigerate within 2 hours of cooking, or within 1 hour if the room or outdoor temperature is above 90°F (32°C). Refrigerated leftovers keep for 3–4 days. For longer storage, freeze in a suitable airtight container for up to 2 months for best quality; thaw overnight in the refrigerator.

Reheat only the portion you plan to eat, in a covered microwave-safe dish or a skillet with a splash of water, until it reaches 165°F (74°C). Do not reheat food in its original foil in a microwave. Discard leftovers that have been left at room temperature beyond the safe time limit.

Frequently Asked Questions

Can I make these foil packets in the oven?
Yes. Place the sealed packets on a rimmed baking sheet and bake at 425°F (220°C) for about 18–22 minutes. Check the chicken in each packet with a thermometer, since ovens and piece sizes vary.

Can I assemble the packets ahead?
You can cut the vegetables and chicken and refrigerate them separately in covered containers for up to a day. For the best texture and food safety, assemble the packets just before cooking; if you do assemble them ahead, keep them refrigerated and cook within 24 hours. Never leave raw chicken at room temperature.

How do I know when the chicken is done?
Check several of the largest pieces in each packet with an instant-read thermometer. Chicken is safely cooked when it reaches 165°F (74°C), the USDA FSIS minimum, at the thickest point. Color alone is not a reliable temperature check.

Can I use bottled teriyaki sauce?
Yes. A prepared sauce keeps this recipe simple. Because brands vary in saltiness and sweetness, taste the sauce before adding the measured salt, and choose a gluten-free or reduced-sodium version if that suits your needs.

Why are my packets watery?
Vegetables and pineapple release liquid as they cook, and canned pineapple can add extra moisture if it is not drained well. Drain canned fruit thoroughly, avoid adding extra juice, and open the packets carefully; spoon off some liquid if you prefer a thicker finish.

Can I cook these packets over a campfire?
A grill grate over steady, medium-hot coals is more dependable than placing foil directly on flames. Heat can vary widely around a campfire, so rotate the packets as needed and check every portion of chicken for 165°F (74°C) before serving.

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Safety notes: safe minimum internal temperatures from USDA FSIS; raw and undercooked fish guidance from the U.S. FDA. Food safety notes

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