This is a really quick and easy dinner. Very healthy too! I cook it a lot because it's a good source of iron.
My mother has a HUGE garden and would make these for me all the time. This is also delicious with beet greens instead of spinach! : D
First: WASH your spinach. Very important. I prefer organic spinach as the pesticides used on others is just disgusting.
heat up your skillet (i use cast iron) to medium low. Trickle a little layer of olive oil on once it heats up.
Add spinach and garlic. You'll notice it will start to shrink down quite a bit. One bag of spinach makes only about 2 sandwiches. Add a few splashes of apple cider vinegar.
toast your bread.
Spoon the spinach onto the bread, put Parmesan cheese on top of the spinach and eat! You can add more apple cider vinegar, but don't add too much or the bread gets soggy. Enjoy!