Olsmorgas (Open-Face Mushroom and Onion Sandwich)

Total Time
Prep 5 mins
Cook 10 mins

From Breads of the World. Serve with a glass of beer. Posted for ZWT6.

Ingredients Nutrition

  • 1 teaspoon butter (or as needed)
  • 1 medium onion, chopped
  • 13 cup sliced mushrooms
  • 1 dash salt
  • 1 dash pepper
  • 1 slice pumpernickel bread
  • 1 tablespoon minced parsley


  1. Melt butter in a skillet and saute the onion until wilted.
  2. Add mushrooms and cook until light brown and a little crisped around the edges.
  3. Add salt and pepper.
  4. Spoon mixture onto bread.
  5. Sprinkle with parsley.
Most Helpful

Delicious sandwich! I prepared this as written except for omitting the parsley. Thank you for a great lunch.

Dreamer in Ontario May 06, 2011

A great sandwich! Was having one of those days, you all know what I mean. Tried to make as written but first chopped a red onion instead of a white onion and second chopped the parsley and left it in the bowl thus why it not showing in the photo. But even with those two errors this was a great sandwich that I will be making again. Thanks so much for the post.

Debbwl September 21, 2010

What a yummy sandwich. I was really tempted to add some garlic and an herb or two but decided to go by just what the recipe ask for and I'm so glad that I did, I used a small sweet onion and a pinch Greek seasoned sea salt. It didn't need another thing. I will certainly be making this again, and soon.

Annacia August 02, 2010