Tex Mex Chicken and Zucchini Recipe tastes smoky, cheesy, and a little spicy, like a skillet of fajitas and a pan of enchiladas had a very delicious baby. It works for busy weeknights, meal prep fans, and anyone who wants dinner on the table in about 30 minutes. I tested this version so many times that my kids now call it “the chicken skillet again,” and they still cheer when they see it.

Why Tex Mex Chicken and Zucchini Recipe Is Worth It

This Tex Mex Chicken and Zucchini Recipe packs big flavor with simple ingredients you probably already keep in your kitchen. You cook everything in one skillet, so cleanup stays easy and you still get that cheesy, saucy comfort food vibe.

The recipe tastes like a lighter version of cheesy Tex Mex casserole, but with lots of veggies and lean protein. It works for low carb eaters, picky kids, and spice lovers, because you can adjust the heat and toppings in seconds.

“This Tex Mex Chicken and Zucchini Recipe tastes like a weeknight miracle in one skillet, and my whole family licks their plates clean. ★★★★★”

Ingredients You Need

Main ingredients

1 ½ pounds boneless skinless chicken breasts, cut in small bite size pieces
- Use thighs if you prefer juicier meat; they handle reheating really well.
2 medium zucchini, quartered lengthwise, then sliced into half moons
1 small red bell pepper, chopped
1 small green bell pepper, chopped
1 small yellow onion, diced
2 cloves garlic, minced
1 tablespoon olive oil or avocado oil
1 tablespoon butter (optional, for extra richness)

Tex Mex seasoning

Use a packet of low sodium taco seasoning as a shortcut, or mix this:

2 teaspoons chili powder
1 teaspoon ground cumin
1 teaspoon smoked paprika
½ teaspoon dried oregano
½ teaspoon garlic powder
½ teaspoon onion powder
½ teaspoon fine sea salt, plus more to taste
¼ teaspoon black pepper
¼ to ½ teaspoon cayenne or chipotle powder, to taste

Saucy and cheesy goodness

1 can (10 ounces) diced tomatoes with green chiles, undrained
- Rotel style tomatoes work perfectly.
¼ cup low sodium chicken broth or water
1 cup canned black beans, drained and rinsed
1 cup frozen corn kernels, no need to thaw
1 ½ to 2 cups shredded cheese
- Use a mix of cheddar and Monterey Jack or a Mexican blend.
Juice of 1 lime
2 tablespoons chopped fresh cilantro, plus more for topping

Optional toppings

Sliced green onions
Diced avocado
Shredded lettuce
Salsa or pico de gallo
Plain Greek yogurt or sour cream
Crushed tortilla chips or baked tortilla strips

Equipment list

Large, wide skillet (12 inch works best, cast iron or nonstick)
Cutting board and sharp knife
Wooden spoon or spatula
Measuring spoons and cups
Small bowl for mixing seasoning, if you make your own

Quick Tips & substitutions

Cut the chicken in small, even pieces so it cooks quickly and stays juicy.
Pat the chicken dry before seasoning so it browns instead of steaming.
Use store bought taco seasoning if you feel tired; just reduce added salt.
Swap black beans with pinto beans or kidney beans if that is what you have.
Use yellow squash along with zucchini to stretch the veggies.
Choose fire roasted tomatoes if you want a smokier flavor.
Skip the corn or beans if you want lower carbs and add extra zucchini.
Use dairy free cheese shreds and coconut yogurt if you avoid dairy.
Keep the skillet hot but not screaming hot so the garlic does not burn.
Add a splash more broth if the mixture looks dry before you add the cheese.

How to Make Tex Mex Chicken and Zucchini Recipe

Step 1: Season the chicken

Add the chicken pieces to a bowl. Sprinkle the chili powder, cumin, smoked paprika, oregano, garlic powder, onion powder, salt, pepper, and cayenne over the top. Toss until every piece of chicken looks evenly coated, then set the bowl aside while you prep the veggies.

Step 2: Sear the chicken

Heat the olive oil in a large skillet over medium high heat. Add the seasoned chicken in a single layer and let it cook without stirring for 2 to 3 minutes so it develops color. Stir and cook for another 3 to 4 minutes until the chicken looks cooked through and no pink remains, then transfer it to a plate and keep it nearby.

Step 3: Sauté the veggies

Add the butter to the same skillet and lower the heat to medium. Add the onion and bell peppers with a pinch of salt and cook for 3 to 4 minutes until they soften and start to brown at the edges. Stir in the garlic and cook 30 seconds until it smells fragrant.

Step 4: Add zucchini and Tex Mex mix ins

Add the zucchini to the skillet and cook 3 to 4 minutes, stirring often, until it turns bright green and slightly tender but not mushy. Stir in the black beans and corn. Pour in the diced tomatoes with green chiles and the chicken broth and stir everything together.

Step 5: Simmer and return the chicken

Return the cooked chicken and any juices from the plate to the skillet. Stir to combine and bring the mixture to a gentle simmer. Let it bubble for 3 to 5 minutes so the flavors blend and the sauce thickens slightly.

Step 6: Add cheese and lime

Turn the heat down to low. Sprinkle the shredded cheese evenly over the top of the skillet and cover with a lid or a sheet of foil. Let the cheese melt for 2 to 3 minutes, then uncover, squeeze the lime juice over the skillet, and sprinkle with cilantro.

Step 7: Taste and finish

Taste a piece of chicken and a zucchini slice and adjust the salt, pepper, or cayenne if you want more kick. Top with green onions, avocado, salsa, yogurt or sour cream, and crushed tortilla chips if you like crunch. Serve the Tex Mex Chicken and Zucchini Recipe hot while the cheese still stretches.

Recipe Variations

Gluten free: Use a gluten free taco seasoning and check labels on broth and canned tomatoes.
Low carb: Skip the corn and beans and add extra zucchini, peppers, or cauliflower florets.
Dairy free: Use dairy free cheese shreds and coconut or almond based yogurt instead of sour cream.
Extra protein: Add a can of drained pinto beans or toss in cooked quinoa at the end.
Extra veggies: Stir in baby spinach or kale during the last 2 minutes of cooking.
Spicy version: Use hot diced tomatoes with chiles and add chopped jalapeño with the onions.

Ways to Serve Tex Mex Chicken and Zucchini Recipe

Spoon over cilantro lime rice or brown rice.
Serve in warm tortillas as soft tacos or burritos.
Pile on top of baked potatoes or sweet potatoes.
Serve in a bowl with shredded lettuce and extra salsa for a burrito bowl vibe.
Pair with tortilla chips and use it like a chunky hot dip.
Serve with a side of simple green salad and fresh fruit.

Storage Success

Let the Tex Mex Chicken and Zucchini Recipe cool until it reaches room temperature, then transfer it to airtight containers. Store it in the fridge for up to 4 days and reheat it in a skillet over medium heat with a splash of broth or water. Stir gently so the zucchini keeps some texture and the cheese melts again. Freeze portions without the toppings for up to 2 months, then thaw overnight in the fridge before reheating.