Preheat your oven to 400°F (200°C) and line a baking sheet with parchment paper.
In a medium mixing bowl, combine the ground chicken, garlic powder, onion powder, sea salt, and black pepper until well incorporated.
Roll the chicken mixture into 1-inch meatballs and place them on the prepared baking sheet, ensuring they are not touching.
Bake the meatballs for 15 to 18 minutes, or until the internal temperature reaches 165°F and the outsides are lightly golden.
While the meatballs bake, heat the olive oil in a skillet over medium heat and sauté the cauliflower rice for 5 minutes until tender.
Assemble the bowls by layering the baby spinach and cauliflower rice at the bottom.
Top with the cooked chicken meatballs, diced cucumber, and halved cherry tomatoes.
Finish the bowl with a dollop of hummus and a bright drizzle of fresh lemon juice before serving.