Great Sandwiches

Here are few paragraphs from the book,

In a small dish, stir together the mustard, mayonnaise and garlic powder. If using the avocado, cut it in half and twist to remove the seed. Reserve one half for another use. Cut the remaining half in half. Peel the skin away from the flesh. Cut each piece into 4 slices and set aside. Slice the unpeeled tomato and set aside.

Microwave the first tortilla for 30 seconds, uncovered, on high. Spread half the mustard mixture over the entire tortilla surface. ...