1.Assemble a solar cooker with a small stoneware pie dish in a 2.5 quart glass mixing bowl and a 9 inch clear glass plate to cover it placed on a reflector.
2.Combine all the ingredients saving a little of the sour cream, lettuce and tomatoes for later.
3.Spoon the mixture on the tortilla.
4.Roll the tortilla and place it on the pie dish and within the larger glass bowl covered.
5. Keep it in the sun with an outside temperature of 65 degree Farenheit for about 1 and a half hour.
6. Plate in and top it with sour cream, lettuce and tomatoes before serving.