Mix all the marinade ingredients, except 1 Tbsp olive oil together in a zip top bag.
¼ cup olive oil, ¼ cup lemon juice, 1 tbsp red wine vinegar, 1 tbsp oregano, 2 cloves garlic, 1 tsp salt, 1 pinch pepper
Place the chicken pieces in the zip top bag with the marinade. Let marinade for 45 minutes at room temperature or up to 12 hours in the fridge. If you are marinating it in the fridge, bring it to room temperature for 45 minutes before cooking it.
6 chicken
When you are ready to cook the chicken, preheat the oven to 375˚F Convection Roast, Convection or 400˚F Regular Bake.
Cut the head of garlic in half through the circumference so that the cloves of garlic are exposed on both halves, place on a cookie sheet.
1 head garlic
Cut the Brussels sprouts in half, place on the sheet. Cut the zucchini into 4-5 large chunks on an angle.
6 Brussels sprouts, 1 zucchini
Cut the acorn squash into wedges. Place on the sheet.
1 acorn squash
Place the olives, lemon wedges and red onion wedges on the sheet.
¼ cup olives, 1 lemon, 1 red onion
Drizzle 1 tbsp olive oil all over the veggies, toss to coat and arrange on the sheet so that all the veggies are mixed up.
Arrange the chicken pieces amongst the vegetables.
Pour the marinade in the bag all over the chicken and veggies.
Sprinkle everything with plenty of freshly ground pepper.
Bake for 50-60 minutes or until the chicken is a deep golden brown.