Preheat oven or toaster oven to 350 degrees.
Combine garlic scapes and almonds in a food processor. Process until the scapes and almonds are chunky. Add the olive oil and lemon juice. Process until smooth. Mix in parmesan, salt and pepper. Place msmen in oven to heat. Remove from oven and spread with garlic scape, top with sliced cherry tomatoes and onion. Cut into squares and serve.