Easy Healthy Chicken & Veggie Sheet Pan Dinner

This easy healthy chicken and veggie sheet pan dinner is the kind of meal you can toss together on a busy evening and still feel great about serving. Tender, juicy chicken roasts alongside colorful vegetables, all coated in a bright lemon-garlic herb marinade that perfumes the whole kitchen. Everything cooks on one pan, so there’s minimal cleanup and no complicated steps to follow. It’s balanced, protein-packed, and naturally full of fiber from all the vegetables. Serve it straight from the pan for a relaxed family-style dinner, or portion into containers for simple, nourishing lunches during the week.

This sheet pan dinner is endlessly flexible, so you can easily use whatever vegetables you already have in the fridge. It works perfectly for weeknight dinners, but it’s also a smart option for meal prep, because it reheats beautifully for the next couple of days. Serve it as is, or add a side of brown rice, quinoa, or whole-wheat pita for extra carbs. You can even swap the chicken for tofu or chickpeas if you’d like a meat-free version.

Ingredients

Here’s everything you need for this easy, healthy one-pan meal. Simple pantry spices and fresh vegetables come together for a bright, satisfying dinner.

• Boneless skinless chicken breasts or thighs – 4 pieces (about 600–700 g total)
• Broccoli florets – 2 cups (about 200 g)
• Red bell pepper – 1 large, sliced into strips
• Yellow bell pepper – 1 large, sliced into strips
• Red onion – 1 medium, cut into wedges
• Cherry tomatoes – 1 cup, whole
• Carrot – 1 large, sliced into thin rounds
• Olive oil – 3 tablespoons
• Fresh lemon juice – 3 tablespoons
• Garlic – 3 cloves, minced
• Dried oregano – 1 teaspoon
• Dried thyme – 1 teaspoon
• Smoked paprika (or regular paprika) – 1 teaspoon
• Salt – 1 to 1½ teaspoons, to taste
• Black pepper – ½ teaspoon
• Red pepper flakes – ¼ teaspoon (optional, for a little heat)
• Lemon – 1, sliced into rounds (for roasting on top, optional)
• Fresh parsley – 2 tablespoons, chopped, for garnis

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Servings

This recipe makes about 4 generous portions as a complete meal, with a good amount of chicken and vegetables on each plate. If you serve it with rice or another side, you can comfortably stretch it to serve 5–6 smaller portions.

How to Make It

Preheat and prep the pan

Preheat your oven to 400°F (200°C). Line a large sheet pan with parchment paper or lightly grease it with a bit of olive oil to prevent sticking.

Make the marinade

In a large bowl, whisk together the olive oil, lemon juice, minced garlic, dried oregano, dried thyme, smoked paprika, salt, black pepper, and red pepper flakes (if using) until well combined.

Coat the chicken

Add the chicken pieces to the bowl and toss to coat them evenly in the marinade. Let them sit for 5–10 minutes while you prepare the vegetables so they absorb the flavors.

Prepare and season the vegetables

Add the broccoli, bell peppers, red onion, cherry tomatoes, and carrot to the sheet pan. Spoon a few tablespoons of the marinade from the bowl over the vegetables and toss directly on the pan until everything is lightly coated.

Arrange and roast

Nestle the marinated chicken pieces among the vegetables on the sheet pan. Add lemon slices on top of the chicken if using. Roast for 20–25 minutes, or until the chicken is cooked through (internal temperature 165°F / 74°C) and the vegetables are tender with some caramelized edges.

Finish and serve

Remove the pan from the oven and let it rest for 3–5 minutes. Sprinkle with chopped fresh parsley. Serve the chicken and vegetables hot, straight from the pan, with extra lemon wedges or a side of whole grains if you like.

Pro Tip

Cut the vegetables into similar-sized pieces so they roast evenly, and don’t overcrowd the pan—space helps everything caramelize instead of steaming.

FAQs

Q1. Can I use chicken thighs instead of breasts?
A1. Yes. Boneless, skinless thighs work very well and stay juicy. Just keep the pieces similar in size so they cook evenly.

Q2. How can I make this recipe vegetarian?
A2. Replace the chicken with drained chickpeas or firm tofu cubes. Reduce the baking time slightly and stir once during roasting to prevent sticking.

Q3. Can I use frozen vegetables?
A3. You can use frozen vegetables in a pinch. Do not thaw; add them straight to the pan and roast a bit longer, knowing they may release more moisture.

Q4. How should I store leftovers?
A4. Cool completely, then store in an airtight container in the fridge for up to 3 days. Reheat in the oven or microwave until piping hot.

Q5. Can I meal prep this in advance?
A5. Yes. Marinate the chicken and chop the vegetables up to 24 hours ahead. Keep them refrigerated separately and assemble on the pan just before baking.

Q6. Why did my vegetables turn soggy instead of roasted?
A6. The pan was likely overcrowded or your oven temperature was slightly low. Use a large pan, spread everything out, and ensure the oven is fully preheated.