• Brown the ground beef in a large skillet.
• Add the tomato sauce, water, minced onions, chili powder and taco sauce, if using. Bring to a boil and let simmer gently on the stove with the lid off to let the flavors blend.
• Meanwhile, while the meat mixture is simmering, chop the tomatoes, lettuce and grate the cheese. Place each in a separate bowl. Refrigerate until needed.
• Next, assemble the ingredients for homemade guacamole and put it together.
• Heat the oil in the electric frying pan at 350 degrees, covered. Return to the meat mix on the stove and stir in the flour. The mixture should gradually thicken. If you want to have a thicker meat mix, add a bit more flour.
• When mixture has thickened, turn off the heat. Turn the oven on to 200 degrees for keeping cooked tacos warm.
• Separate 12 corn tortillas, or however many you need to use. Lay a corn tortilla flat in the hot oil, then place about 3 tablespoons of meat mixture into the center of the tortilla. Using a spatula, fold the tortilla in half and push it to one corner of the electric skillet. Repeat this process until you have four tortillas folded, one for each corner.
• By this time, it will be time to flip the first taco you filled. Carefully, using a spatula, roll the taco over onto its other side. Repeat the process, going in order from first taco to last. By the time you flip the last one, it will be time to take the first taco out of the skillet.
• Place the cooked tacos on a couple of layers of paper towels in a baking pan. When you have removed the tacos from the skillet and placed them in the baking pan, put the pan in the oven to keep the cooked pan-fried tacos warm. Start cooking the next batch of tacos. Repeat the cooking process until you have the number of tacos you need.

Making the Guacamole

• Mash the avocados. Stir in the ketchup, minced onions, chili powder, lemon juice and taco sauce, if using. Refrigerate until needed.