Chicken Tortilla Soup

1/2 Vadalia Onion
3 Tbsp Butter
2-3 C Cooked Chicken, Shredded
1 can Refried Beans
3-4 cans Chicken Broth
1 pkg Taco Seasoning
1 can Rotel
4 handfuls Crushed Tortilla Chips
1/2 block Velveeta
Sour Cream
Chopped Avocado
Shredded Cheese
Tortilla Chips

Saute onion and butter. Add remaining ingredients except Velveeta and chips. Cook on medium heat for 30 minutes. Add Velveeta and stir until melted. Stir in crushed chips. Top with cheese, sour cream, and avocados (all optional). Serve with tortilla chips. Enjoy!