1. Cook the oatmeal according to the package instructions and set aside.

2. Wash and cut the vegetables into bite-sized pieces.

3. Heat some oil in a large pan and sauté the vegetables until lightly browned.

4. Finely chop the garlic and add it to the vegetables. Mix well.

5. Add the shrimp to the pan and cook for about 3-4 minutes until they are cooked through.

6. Drain the tuna and add it to the pan. Mix well.

7. Cut the chicken breasts into small pieces and add them to the pan. Mix well.

8. Slice the tomatoes and carrots and add them to the vegetables. Mix well.

9. Add the cooked oatmeal to the pan and mix everything together.

10. Season with salt, pepper, and other spices according to taste.

11. Let the stir-fry simmer for another 5-7 minutes until the vegetables are tender.

12. Serve the finished oatmeal vegetable stir-fry and enjoy!