What you'll need:
Step 1: Mix and spread
Mix the mayo and relish in a small bowl. Then spread the mixture onto a whole wheat tortilla. Next, lay out the ham and swiss cheese on top of the tortilla. Make sure to lay out the ham and cheese evenly -- this will make rolling the tortilla much easier.
Step 2: Add the remaining ingredients
Chop up one avocado and one tomato and arrange them on top of the tortilla. It's a sneaky way to get some fruits and vegetables into kids' bellies. You could add baby spinach and sliced bell peppers as well.
Step 3: Pack it up
Once the ingredients are added, roll up the tortilla. Fold up the sides as you go, exactly as you would fold up a burrito. Finally, wrap the rollup in aluminum foil, throw it in your kid's lunch box and you're ready to go. Yum!