Bacon with Spinach, Mushrooms, and Onions

This meal is simple but very filling. 

Serves 1

3 strips thick-cut, pasture-raised bacon (or more)
1 small Ziploc of baby spinach
1/2 an onion, chopped
3 large mushrooms (such as crimini), sliced (optional)
sea salt & pepper

Cut the bacon into bite-size pieces (I do this before I go on trip and store it in a baggie).
Saute bacon in a small backpacking pot until it starts to give off some fat.
Add the onions and mushrooms and saute until the bacon is cooked and the veggies are soft.
Add the spinach and put the lid on. Let it sit on the fire for a few more minutes to let the spinach wilt.
Remove from heat and stir in spinach.
Season with sea salt and pepper if desired.