Whisk eggs with a fork, add a splash of water, salt and pepper. Set aside
Chop mushrooms and add to warm pan, along with spinach, and sauté until spinach is wilted
Add in egg mixture and start rotating pan while scraping down the sides as in the video and explanation above
When egg is just about cooked, add in ricotta and cheddar cheeses and fold over one half of the omelette onto the other. Cover with a second pan, or baking sheet, or a lid and let cook for a few minutes until the cheese is melted
Cut into two and serve with a side of toast, sliced veg, fruit, or small salad