The Best Grilled Fajita Chicken

boneless skinless chicken breasts, (large breasts sliced in half, pounded to even thickeness)

olive oil (separated)

large lemon ((1/2 teaspoon zest, 2 tablespoons juice))

and 1/2 teaspoons EACH: dried leaf oregano (not ground oregano), seasoned salt, ground cumin

garlic powder

EACH: ground chili powder, paprika, crushed red pepper

large peppers ((I like to do 1 red, 1 green, 1 yellow/orange))

yellow onion, (sliced into thick rings)

Optional toppings: pre-made guacamole, low fat or fat free sour cream, 1 can black beans (drained and rinsed), fresh lime, fresh cilantro (or green onions)

Serve over/with: charred tortillas, cilantro lime rice/quinoa (recipe in note section)