Ingredients

Thinly sliced radishes 

Extra-virgin olive oil 

Fresh lemon juice 

Coarse salt 

Freshly ground pepper 

Sliced avocado 

Whole-grain bread 

Finely grated lemon zest 

Preparation

Toss radishes with oil, lemon juice, salt, and pepper. Repeat with avocado, and mash onto bread. Pile on radish mixture, and sprinkle with lemon zest. Drizzle with oil.