1. Preheat the oven to 375°F (190°C).

2. In a large skillet, cook the ground chicken until browned.

3. Add diced onion, diced tomatoes, and corn to the skillet. Cook until the vegetables are softened.

4. Stir in the refried beans and tomato sauce. Mix well to combine all ingredients.

5. Transfer the mixture to a baking dish and spread it evenly.

6. Bake in the preheated oven for 25-30 minutes, or until bubbly and heated through.

7. Serve hot and enjoy!