Over medium heat, in a skillet, cook the onion and ground turkey. The turkey should be cooked until it's no longer pink. Drain off any fat, then push the turkey to one side of the skillet. Add the rice and toast for about 1 minute.
Add the broth, 1 cup salsa, 1 cup diced tomatoes, taco seasoning, corn, and the beans. Bring to a boil then lower the heat and simmer for about 10-15 minutes, or until the rice is tender. Season with salt and pepper. If it starts to dry up, just add a little more broth. Turn off the burner.
Mix in the cheese. It will melt with the heat.