Add chopped Bacon to a heavy-bottomed frying pan, and sauté until crisp.
Drain Bacon onto a paper towel and reserve the fat tendered from it to use for frying the Garlic and Onions. If you want a healthy version you might as well discard the bacon fat (but don’t regret it later) and add oil to the frying pan
Sauté Garlic and Onions until they are translucent, then add mushrooms and spinach and cook for 5 minutes or until most of the water evaporates. Season with salt and pepper.
Add the cooked Orzo and mix until everything has been incorporated well