This One-Pan Balsamic Chicken is an easy, flavorful sheet-pan dinner that works well for busy weeknights and is adaptable to what you already have in your kitchen. The simple balsamic marinade brightens the chicken and melds with roasted vegetables for a complete meal with minimal cleanup. It’s Whole30-friendly when made with compliant ingredients, and you can easily swap vegetables based on seasonality or leftovers. The method is straightforward: marinate the chicken briefly, arrange the veggies on a baking sheet, nestle the chicken in the center, and roast until everything is tender and caramelized. This approach yields juicy chicken, savory roasted potatoes, crisp Brussels sprouts, tender mushrooms, and blistered tomatoes all in one pan.
This recipe is forgiving — you can extend the marinating time for greater depth of flavor, or prepare the marinade and vegetables in advance to shorten active preparation time. The balsamic adds a pleasant sweet-tangy note that complements garlic, basil, and oregano. If you like a slightly thicker glaze, reduce the marinade on the stovetop for a few minutes before drizzling; otherwise, it roasts beautifully as-is.
- 1.5 lbs (about 3–4) boneless, skinless chicken breast
- 1/3 cup balsamic vinegar
- 1/3 cup chicken broth (or water)
- 2 cloves garlic, minced
- 1 teaspoon fresh (or dried) chopped basil
- 1/2 teaspoon dried oregano
- Salt and pepper, to taste
- About 15 Brussels sprouts, stems removed and halved lengthwise
- 8 oz sliced mushrooms
- About 12 grape or cherry tomatoes
- About 10–12 baby red potatoes, halved
- In a small bowl, whisk together the balsamic vinegar, chicken broth (or water), minced garlic, basil, and oregano.
- Rinse and pat the chicken breasts dry. If any pieces are very thick, pound them to about 1/2 inch thickness. Season both sides with salt and freshly ground black pepper.
- Place the chicken in a resealable plastic bag or shallow container and pour the balsamic marinade over the top, ensuring each piece is coated.
- Marinate the chicken in the refrigerator for at least 30 minutes. Longer marinating time will deepen the flavor.
- Preheat the oven to 425°F (220°C).
- On a large baking sheet, arrange the potatoes, tomatoes, mushrooms, and Brussels sprouts. Drizzle with about 2 tablespoons olive oil, season with salt and pepper, and toss to coat evenly.
- Make a small space or “nest” in the center of the vegetables and place the marinated chicken in that spot.
- Use any remaining marinade to drizzle over the vegetables and chicken.
- Roast in the preheated oven until the chicken is cooked through and vegetables are tender and golden, about 25–30 minutes. Chicken should reach a safe internal temperature and be opaque in the center.
- If the chicken finishes before the vegetables, remove the chicken and continue roasting the vegetables until the potatoes are golden and the Brussels sprouts are crisp.
- Garnish with fresh chopped basil if desired.
Swap vegetables: use carrots, asparagus, bell peppers, or sweet potatoes depending on what you have. Cut firmer vegetables into uniform pieces so everything cooks evenly. For a richer glaze, reduce the marinade in a small saucepan for 2–3 minutes until slightly thickened and then brush it on before roasting.
Make it Whole30-friendly by confirming your balsamic vinegar and broth meet Whole30 requirements and by using compliant olive oil. For poultry alternatives, bone-in chicken thighs or drumsticks work well and may require slightly longer cook time.
To keep the pan tidy, line the sheet with parchment paper or aluminum foil for easier cleanup. Allow the chicken to rest for a few minutes after roasting to let the juices redistribute before slicing.
Storage: Refrigerate leftovers in an airtight container for up to 3–4 days. Reheat in the oven at 350°F (175°C) until warmed through to preserve texture; microwaving is faster but may soften roasted vegetables.