Greek Avocado Toast with Cherry Tomatoes

Make it vegan: Use dairy-free feta or omit the cheese.
Extra protein: Add a poached or fried egg on top.
Crunch factor: Sprinkle with sunflower seeds or toasted pine nuts.
Gluten-free option: Use gluten-free bread.
Storage: Best eaten fresh, but you can store mashed avocado with extra lemon juice in the fridge for a few hours.