In a covered blender container, blend almonds till finely ground.
Add spinach, Parmesan cheese, onion, and oil.
Cover; blend till a paste forms, stopping and pushing mixture down as necessary.
Unroll rolls and separate into triangles.
Spread each triangle with about 2 teaspoons of the spinach mixture.
Place, point down, on an ungreased baking sheet.
Sprinkle with sesame seed.
Bake in a 375° oven 10 to 13 minutes.