Mix all dry seasonings - Garlic powder, onion powder, paprika, oregano, salt, and pepper.
Cut chorizo into slightly thick slices.
Pre-heat the oven to 350°F.
Prep Chicken by patting it dry with a kitchen towel. Toss it with a tablespoon of oil. Sprinkle 2 tablespoons of the above seasoning blend and coat the chicken well.
To a baking pan, add all the veggies, crushed garlic, and toss with the remaining 1 tablespoon of oil, followed by the remaining dry seasoning mix.
Arrange seasoned chicken pieces in a single layer, and put sliced chorizo in the gaps in between. Loosely cover the baking tray with aluminum foil and bake it for 30 minutes.
Remove the tray and carefully remove the aluminum foil.
Crank up the heat to 4000°F. Put the tray back in the oven and bake for another 15-20 minutes until the skin is nicely browned and potatoes are cooked through.