In a dutch oven or steamer, begin by fully steaming the spaghetti squash. Once it is steamed, scrape out the seeds with a fork. Then, use a fork to scrape out the remaining spaghetti squash and set aside.
In a large skillet heat up enough olive oil to coat the skillet. Then, add in the frozen veggies and garlic. Let this simmer for 10-15 minutes until the veggies are warm.
Add in the spaghetti squash and the cooked chicken breast and let simmer an additional 10 minutes.
Continue tossing in the skillet to coat with olive oil and garlic.