Loaded Veggie + Chicken Casserole

Name: Loaded Veggie + Chicken Casserole
Cuisine: American
Ingredients: 1 red bell pepper (seeded & diced); 1 yellow bell pepper (seeded & diced); 1 red onion (diced); 1 pint cherry tomatoes; 4 fresh garlic cloves (minced); 3 heaping cups chopped fresh kale leaves (thick stems removed); 2 Tbsps homemade taco seasoning (recipe above); 1 Tbsp avocado oil or olive oil; 1 x 15 oz can chickpeas (drained and rinsed); 4 cups cooked shredded chicken; 1/2 cup homemade mayonnaise or plain Greek yogurt; sea salt and ground black pepper (to taste); 1 cup freshly shredded cheese