Fluffy egg omelette with chicken sausage filling

Ingredients

For Egg Omelette:

• Egg- 4 (Yolk and Whites separated)
• Salt to taste
• Baking powder-1 tsp
• Milk- ¼ cup

For Filling:

• Chicken Sausage-1 cup chopped
• Onion-1 chopped finely
• Tomato Ketchup-2 tblspn
• Pepper-1 tsp
• Salt to taste
• Coriander leaves -2 tblspn chopped
• Cheese ? ¼ cup grated
• Oil-1 tblspn