Open-faced sandwiches are a nice change from regular sandwiches, and just as easy to make! These South of the Border Sandwiches are a recipe I found on The Girl Who Ate Everything, but I believe the recipe is originally from somewhere else.
For mine, I combined mayonnaise, sour cream, cumin, chili powder, and diced olives to make the sauce; and then spread a layer on each slice of bread. On top of that I layered ham, lettuce, tomato, avocado, and shredded cheese. Then I popped it in the toaster oven until the cheese melted, and it was ready to go!