If you're a vegetarian ... Top with half of the avocado. Top with half of the red onion. If you want to take this sandwich and make it your own, there are a number of different ways to go about ...

A vegetarian and high fiber lunch anyone will love. Smash avocado flesh in a small bowl with the back of a fork. Juice lime and add 6 tsp juice with salt and pepper to taste to smashed avocado.

Layer with the avocado, 2 tomato slices and 1 lettuce leaf. Spread 2 bread slices with the remaining mayonnaise. Place, mayonnaise-side up, on the sandwiches. Layer with the cucumber, remaining ...