In a large bowl, crack eggs and whisk with milk; set aside.
In a frying pan over medium heat, heat butter and sauté ham and onions for a few minutes, then add egg mixture and scramble, seasoning with salt and pepper to taste. Once cooked, set aside and start assembling: spread tortilla with ½ tbsp (7 mL) mayonnaise and add scrambled egg mixture topped with 1 oz (28 g) grated cheese and 2-3 tbsp (30-45 mL) fresh salsa. Wrap and serve. Simple, quick and guaranteed to be a winner.
Makes 4 servings.