Preheat your oven to 400°F. Line a baking sheet with parchment paper.
In a mixing bowl, combine the lean ground turkey, beaten egg, chopped parsley, minced garlic, salt, and pepper. Mix until thoroughly combined.
Form the turkey mixture into small meatballs (about 10-12 meatballs, depending on the size you prefer).
Place the meatballs on one side of the baking sheet.
In a separate bowl, toss the chopped carrots, zucchini, and red bell pepper with olive oil, salt, and pepper.
Spread the vegetable mixture on the other side of the baking sheet, ensuring even distribution.
Roast in the oven for 18-22 minutes, turning the meatballs halfway and stirring the vegetables for even cooking, until the meatballs are cooked through and the vegetables are tender and lightly caramelized.
Remove from the oven and let cool slightly before serving.