Preheat oven to 400 degrees F.
In a large bowl mix the zucchini, onion, and bell peppers with 2 TBSP olive oil, ½ TSP chili powder of choice and ½ TSP salt. Spread evenly on a large rimmed, baking sheet pan. Cook for 15 minutes on the lower rack while prepping the chicken and corn.
Add the corn cob pieces to a large bowl and mix lightly with 1 TBSP olive oil and ¼ TSP salt. Put on one side of a second sheet pan
In a small bowl, whisk together the remaining 1 TBSP olive oil and ½ TSP salt, 1 TSP honey, ½ TSP chili powder and black pepper.
Rinse chicken breasts with cold water and pat dry, then rub on all sides with the chili-honey mixture.
Place chicken on the second sheet pan next to the corncobs and place on an upper rack in oven. Bake for 25 minutes, or until a thermometer reaches 165 degrees in the thickest part of chicken breast. Turn over the vegetables on first sheet pan halfway through cooking.
Make the honey chili glaze while sheet pans are baking. Melt 1 TBSP butter in a small saucepan, whisk in 1 TSP honey, and ¼ TSP chili powder of choice.
Take out both sheet pans from the oven. Brush chicken and corn with the honey chili glaze and broil on high 6-7 minutes until the corn is slightly charred and the chicken is browned.
Garnish with cilantro leaves and cheese if desired.
Serve with soft tortillas and your favorite salsa if desired.