Easy Chicken Enchilada Soup

Ingredients

• 2 tablespoons olive oil
• 1 cup white onions, diced
• 3 cloves garlic, minced
• 1/2 cup flour
• 3 cups chicken stock
• 2 cups chicken, cooked and shredded
• 1 (10-ounce) can red enchilada sauce
• 1 (14-ounce) can black beans, rinsed and drained
• 1 (14-ounce) can diced tomatoes
• salt, to taste
• 1/2 teaspoon ground cumin
• 1 (8-ounce) block sharp cheddar cheese, freshly grated
• tortilla strips, to taste
• avocado, to taste, diced or sliced
• sour cream, to taste
• fresh cilantro, to taste, chopped
• pico de gallo, to taste