Next time I'll use about 4 cups of fresh baby spinach and saute it along with the beef. (myrecipereviews.com)
If you are using fresh spinach: Fill your mug with fresh baby spinach leaves and add a couple of tablespoons of water. (bowlofdelicious.com)
I like heat so I added 1/2 tsp of red pepper flakes and I added a bag of fresh baby spinach in the last five minutes of cooking. (jessicainthekitchen.com)