Toast two slices of whole grain bread until golden brown, about 4-5 minutes.

Open and drain a can of white beans, then mash about 1 cup in a bowl with olive oil, salt, and pepper.

Cut, pit, and scoop a ripe avocado into a bowl; mash with lemon juice, salt, and pepper.

Spread the white bean mixture over the toasted bread, then layer with the mashed avocado.

Top with halved cherry tomatoes and sliced radishes, then sprinkle red pepper flakes if desired.

Slice the toast in half and serve, drizzling more olive oil on top if desired.