Preheat oven to 200 degrees Celsius (392 degrees Fahrenheit), regular oven.
Put eggs, milk, oil, salt, oregano, and baking powder in a bowl and whisk together.
Finely chop ham, pepperoni, and spinach and fold in along with the two types of flour.
Distribute in muffin cases, filling only 2/3 full.
Put 1 tsp. tomato sauce on top of each muffin and top with grated cheese.
Bake for 17-18 minutes until fully cooked and the cheese is golden.
Then they are ready.