Cheesy Chili Chicken Enchiladas

Ingredients

• 2 tablespoons all-purpose flour
• 1/4 teaspoon ground coriander
• 1/8 teaspoon pepper
• 1 cup chicken broth
• 1 tablespoon butter
• 1/4 cup onion, chopped
• 2 cloves garlic, minced
• 1 (4-ounce) can chopped green chiles
• 1 cup Monterey Jack cheese, shredded, divided
• 1/2 cup sour cream
• 2 cups chicken, cooked and chopped
• 4 (8-inch) tortillas
• tomatoes, to taste, chopped
• ripe olives, to taste, sliced
• green onions, to taste, sliced