Place the oven racks in the upper and lower thirds of the oven and preheat the oven to 375° F/190° C.
Take a stack of about 10 wonton wrappers and cut them in half into triangles. Leave the rest in the package so they don’t dry out. Lay the triangles on the baking sheet close together and cut more triangles as necessary to fill the sheet. Spray some canola oil on the triangles, then flip them over. Brush the top side of the triangles with the egg white.
Sprinkle on whatever combination of toppings you like. Sprinkle spices first, then add seeds and salt. Bake in the preheated oven until golden brown and crispy, about 7 to 9 minutes, rotating the pans about halfway through. Remove and allow to cool on the pan, then keep in an airtight container for up to 1 week.