Heat the olive oil in a large skillet over medium heat.
Add the diced onion and cook until it becomes translucent, about 5 minutes.
Stir in the minced garlic and cook for an additional 1 minute until fragrant.
Add the ground chicken to the skillet and season with salt, pepper, oregano, basil, and smoked paprika. Cook until the chicken is browned and fully cooked, breaking it up with a spoon, about 7-10 minutes.
Incorporate the diced red bell pepper and zucchini into the skillet, cooking for 3-5 minutes until tender.
Add the cherry tomatoes and Kalamata olives, stirring everything together. Cook for 2-3 more minutes, allowing the tomatoes to soften slightly.
Sprinkle the crumbled feta cheese over the top and let it melt slightly before serving.
Remove from heat and garnish with freshly chopped parsley or basil.