Per serving
This is so yummy, I can make a meal off of it alone. Great to take to parties and covered dish functions.
Cook spinach as directed on package. Drain very well.
Saute onions in butter in skillet.
Mix in spinach, mushrooms, cheeses (except parmesan), and all other ingredients. Spread on bread.
Sprinkle parmesan on top.
Bake at 350 for 10 to 15 minutes.
The Prepka App Is Ready
All your recipes at your fingertips — in the Progressive Web App