I thought long and hard about the creamy third layer in this 3 Layer Mexican Dip. I love cream cheese in my dips (like this super easy 3-Ingredient Sausage Cream Cheese Vegetable Dip). But cream cheese is an ingredient that is used so much in keto cooking (like in fathead dough creations like this Keto Pumpkin Spice Cream Cheese Danish) that I wanted to make a keto dip without cream cheese. Instead, the creamy layer of this taco dip includes mayonnaise and sour cream.