Preheat your oven to 400°F and line a large rimmed baking sheet with parchment paper.
Slice the zucchini into rounds, chop the red bell pepper into bite-sized pieces, and dice the red onion.
Place the vegetables on the baking sheet and toss with 1 tablespoon of olive oil, a pinch of sea salt, and a pinch of black pepper.
In a medium mixing bowl, combine the ground turkey, egg, almond flour, dried oregano, garlic powder, remaining sea salt, and remaining black pepper.
Gently mix the turkey mixture by hand until just combined, then form into 10 even meatballs.
Arrange the meatballs on the baking sheet, nestling them among the vegetables, and drizzle the meatballs with the remaining 0.5 tablespoon of olive oil.
Roast in the center of the oven for 20 to 25 minutes, or until the meatballs reach an internal temperature of 165°F and the vegetables are tender.
Divide the warm cooked quinoa between plates and top with the roasted turkey meatballs and caramelized vegetables.