Sauté onions (we use coconut oil) in large skillet on medium heat for about five minutes until they start to caramelize.
Add bell pepper and continue to sauté until the pepper slices soften.
Add sausage; use wooden spoon or spatula to chop in pan. (Optional: add a splash of Mirin, Japanese cooking wine, for a touch of sweetness.)
Once sausage is fully cooked, remove pan from heat. Add spinach and stir into cooked ingredients. The steam alone will lightly wilt the spinach to the perfect consistency.