Vegetarian Taco Skillet Meal

2 onions, diced
6-12 c spinach
3 c cooked pinto beans
1 can corn kernels
2 T taco seasoning
blue corn chips, optional

In a large skillet, saute the onions over medium heat for about 3 minutes. Add spinach and cover the pan; allow to cook for about 5 minutes, until spinach starts to wilt. Stir together with onions, then add pinto beans, corn, and taco seasoning. Continue to cook over medium heat until everything is heated through. Top with blue corn chips and/or guacamole, if desired.