Preheat oven to 375F. Saute onion in 1/3 cup canola oil, until brown. Let cool. Beat eggs until mixed well, blend in milk, sauteed onions and oil mixture. Add flour, baking powder, oregano, and garlic powder.
Mix well. Stir in spinach, broccoli, and cheese. Spoon onto a baking stone or greased pan.
(about the size of a medium biscuit). Bake 20 to 25 minutes.