Preheat large (12 inch) deep skillet on low - medium heat and swirl oil to coat. Add onion, garlic and bell pepper; saute for 3 minutes, stirring occasionally.
Move vegetables to the side of the skillet and add chicken. Sprinkle with 1 tsp cumin, salt and black pepper. Cook for about 5 minutes, stirring occasionally.
Add corn, beans, tomatoes, zucchini, taco seasoning and remaining cumin. Stir, cover and cook on low-medium for 10 minutes.
Sprinkle with cheese, cover and cook for a few minutes or until cheese has melted. Top with green onion and cilantro.
Serve hot, on its own or with Instant Pot brown rice or Instant Pot quinoa. Or as a garnish, feel free to add sour cream, cilantro and black olives after the cheese was melted. Top with crushed tortilla chips. Use as filling in low carb wraps, garnished with sliced avocado.
Video
Notes
Store: Refrigerate covered for up to 3 - 4 days. Do not freeze.
To reheat: Simmer on low heat in a skillet for 5 minutes covered. If you use non-stick skillet you should not need any water or oil to reheat the dish as again zucchini will release water.
Do not over cook zucchini: Follow the recipe and do not cook until zucchini appear soft and cooked.
Cut garden zucchini smaller: Garden zucchini often are giant. Just cut them into cubes instead of quarters.
Use very large skillet: This recipe makes a lot and not overcrowded skillet results in more firm zucchini. I used 14 inch Green Pan, you can also use 12 inch skillet with very tall walls, around 2-3 inches high.