Sheet Pan Chicken & Veggie Fajitas | A 30-minute, Blood Sugar-Friendly Dinner for Busy Nights

Recipes
Sheet Pan Chicken & Veggie Fajitas | A 30-minute, Blood Sugar-Friendly Dinner for Busy Nights

Back-to-school season, after-school practices, and weeknight activities call for one thing: simple meals. Meals that don’t take an hour of prep, don’t dirty every pan in the kitchen, and don’t leave you drained before you even sit down to eat.

Enter: sheet pan dinners. They’re the ultimate hack for busy families—toss everything together, roast it all on one pan, and you’re done. This recipe for Sheet Pan Chicken & Veggie Fajitas is my weeknight go-to: fast, flavorful, and naturally balanced using my Fab Four formula (protein, fat, fiber, and greens).

Why Sheet Pan Meals Work So Well

Sheet pan dinners are not just about convenience—they’re about strategy. A single pan means:

  • Minimal prep and cleanup
  • Quick cook times (hello, 30 minutes!)
  • Perfectly roasted veggies and juicy, seasoned protein
  • A one-and-done solution when you need dinner now

For families in a busy season of life, having a meal like this on repeat can make the difference between grabbing takeout and actually sitting down to a nourishing dinner.

Blood Sugar Balance Made Simple

Fajitas are naturally a great option for balancing blood sugar because they check multiple Fab Four boxes:

  • Protein: Chicken thighs or breasts give staying power and satiety.
  • Fat: Avocado oil for roasting and guacamole for serving.
  • Fiber + Greens: Bell peppers, onions, and any extra veggie sides you want to throw in (cauliflower rice or a side salad works beautifully).

Pairing protein, fat, and fiber with your tortillas slows down the absorption of carbs, which helps avoid the energy spike and crash cycle. This is especially important for moms (hello, steady energy through homework and bedtime routines) and for kids needing sustained fuel for school or sports.

How I Keep It Simple

This entire recipe takes me 30 minutes start to finish. Here’s the play-by-play:

  1. Chop everything once: Slice chicken, peppers, and onion into strips.
  2. Toss it all together: Coat with avocado oil and Siete fajita seasoning.
  3. Sheet pan magic: Spread evenly, bake for 20–25 minutes, flip halfway.
  4. Make the guac: While the fajitas are roasting, mash up a quick guacamole.
  5. Warm the tortillas: Pop them in for the last 5 minutes.

By the time the oven timer goes off, you’ve got warm tortillas, roasted fajita filling, and guacamole ready to go.

A Note on “Busy Season” Meals

I think of this meal as the perfect busy season blueprint:

  • Simple enough for a weeknight
  • Balanced enough for steady energy
  • Customizable for the whole family (kids can build their own fajitas)

When life feels chaotic, food doesn’t have to add to the stress. A nourishing, blood sugar–friendly dinner like these Sheet Pan Fajitas gives you more energy, not less, and helps your family feel fueled for the evening ahead.

  • Prep Time

    5 minutes

  • Total Time

    30 minutes

  • Servings

    4-5

  • Freezer Friendly

    No

Ingredients

For the Fajitas:

  • 1 ½ lbs boneless, skinless chicken breasts or thighs, cut into thin strips
  • 3 bell peppers (any color), thinly sliced
  • 1 large yellow onion, thinly sliced
  • 3 tbsp avocado oil (or olive oil)
  • 2–3 tbsp Siete Fajita Seasoning

For Serving:

Directions

  1. Preheat your oven to 425°F and line a large sheet pan with parchment paper for easy cleanup.
  2. Add the chopped bell peppers, onions, and chicken to the sheet pan. Drizzle with olive oil and sprinkle over 1 packet of Siete Fajita Seasoning. Toss everything until well-coated.
  3. Spread the chicken and veggies evenly on the pan. Bake for 20–25 minutes, flipping halfway through, until the chicken is fully cooked and the veggies are tender.
  4. While the fajitas roast, mash avocados in a bowl with lime juice, garlic, cilantro, and salt. Adjust to taste with more lime or salt.
  5. Wrap Siete tortillas in foil and warm them in the oven during the last 5 minutes of cooking.
  6. Fill warm tortillas with the roasted chicken and veggies. Top with guacamole and your favorite extras like fresh cilantro, salsa, or hot sauce. Pro Tip: Squeeze fresh lime over the fajitas right before serving for a bright, zesty finish!