Rolled ham and Swiss omelet

Rolled ham and Swiss omelet (Adapted from Mayo Clinic)

1/2 cup all-purpose flour
1 cup plain soy milk
1 tablespoon butter
2 whole eggs
4 egg whites
1 cup chopped smoked ham
1 small onion, chopped
1 1/2 cups shredded Swiss cheese
1 1/4 cups chopped fresh spinach

Preheat oven to 350
Line a 15x10" pan with foil and coat well with cooking spray.

In a large bowl, whisk together the flour, soy milk, butter, egg and egg whites. Pour the egg mixture into the prepared pan and sprinkle with ham and onion.

Place in the oven and bake until eggs are set - about 15 minutes. Immediately scatter cheese and chopped spinach on top.

Using the foil to help, roll up beginning at wide end into a large cynlinder shape.

Use a serrated knife to cut into servings.