Preheat oven to 375F degrees. Spray a 9x13-inch baking dish with nonstick cooking spray.
In a medium bowl, combine Bisquick mix with water. Stir well (batter will be lumpy.)
Pour into baking dish and spread out evenly.
Using the same bowl (so as not to make any more dirty dishes than is necessary), combine enchilada sauce, cream of chicken soup, diced chicken, taco seasoning and 1 cup shredded cheese.
Combine well then evenly spread over the Bisquick layer.
Top with remaining shredded cheese.
Bake uncovered for 30 minutes, until bubbly and golden around the edges.
Notes
Please refer to my FAQ’s (Frequently Asked Questions) and ingredient list above for other substitutions or for the answers to the most common questions.