Preheat oven to 375 degrees F. Line two sheet pans with parchment paper.
In a large bowl, whisk together minced garlic, garlic powder, oregano, cumin, ½ tsp salt, pepper, citrus juice and olive oil. Set aside 2 tbsp of marinade.
Add the chicken to the bowl and toss to coat in the mojo. Marinate for 10 minutes.
Meanwhile, cut the squash in half, remove the seeds, and then place flat side down and cut ¼- inch thick c-shaped wedges.
On one sheet pan, place the chicken in a single layer onto the prepared baking sheet, being sure to drizzle any extra marinade evenly on top of the chicken. Season with the other ½ tsp salt.
On the other sheet pan, place the squash slices in a single layer, and drizzle with the reserved mojo.
Place into oven and bake until the chicken is fully cooked and the squash is tender, about 20 minutes.
Optional: Broil for 3 minutes to get a golden color on the chicken and squash.
Garnish with cilantro and serve immediately.