Greek Chicken Meatball Bowls

Name: Greek Chicken Meatball Bowls
Cuisine: European, Mediterranean, Greek
Ingredients: 1 lb ground chicken; 3/4 tsp salt; 1/4 tsp black pepper; pinch of red pepper flakes; 1/4 tsp onion powder; 1/2 tsp dried oregano; 3/4 tsp ground cumin; 2 tbsp fresh dill, chopped; 1/3 cup baby spinach, finely chopped; 1/2 tsp lemon zest; 2 cloves garlic, minced; 1 egg + 1 egg yolk; 1/2 cup panko breadcrumbs; 1 tbsp olive oil; 2 cups cooked rice; 2 cups cherry or grape tomatoes, halved; 3 Persian cucumbers, sliced; hummus and/or tzatziki to taste; 1/2 cup crumbled feta; lemon wedges; additional topping ideas: pickled red onions, olives, banana rings and chopped dill