You’ll by no means leave out the beef in those hearty and pleasing Portobello Mushroom and Spinach Subs. They’re a scrumptious weeknight dinner and ready in simply 30 mins from begin to end!

A closeup of three portobello mushroom subs on a wooden cutting board.

In case you’re a mushroom lover, you’re going to need to eat this savory sandwich. The marinade is a zesty and flavorful mixture of crimson wine vinegar, Worcestershire sauce, highly spiced mustard, garlic, and olive oil. HEAVENLY.

Components Notes

Overhead view of ingredients needed for making portobello mushroom subs.
  • Portobello mushrooms – cleaned and particles got rid of with a moist towel, then reduce into about 2-inch items.
  • Pink onion – thinly sliced
  • Child spinach – kind of chopped
  • Highly spiced mustard
  • Olive oil
  • Pink wine vinegar
  • Worcestershire sauce
  • Garlic
  • Salt and black pepper
  • French baguette loaf – you’ll additionally use toasted bread, hamburger buns or sub rolls instead of the baguette… I like the feel of the crunchy baguette.
  • Shredded mozzarella – finely shredded Parmesan could be scrumptious, as smartly!

The way to Get ready

Following is a temporary review of find out how to get ready – please see the recipe card on the backside for complete detailed directions and element quantities.

A loaf baguette sliced into four pieces and vertically across the top on a cutting board.
  1. Slice a loaf baguette calmly into 4 slices, then slice vertically around the tops. Hole each and every slice out, pulling out lots of the bread inside of. Put aside.
Overhead view of marinade in a bowl with a whisk for portobello mushrooms.
  1. Whisk in combination crimson wine vinegar, Worcestershire, mustard, garlic and olive oil in a medium bowl.
Two images of mushrooms and onions in marinade before and after sautéing.
  1. Position mushrooms and crimson onion slices in a big baking dish and pour the marinade over. Stir or toss to coat. Season with salt and pepper.
  2. Switch mushroom aggregate (at the side of the marinade) to a big skillet over medium excessive warmth. Prepare dinner for 5 to 6 mins, or till mushrooms are soft.
A two-image collage of mushroom and spinach mixture and sliced baguette on a baking sheet.
  1. Switch mushrooms and onions (with their marinade) again into the baking dish. Upload spinach and stir smartly to mix, coating the spinach as calmly as conceivable. The spinach will wilt whilst your baguette is heating.
  2. Bake baguette slices on a baking sheet in a preheated oven for 5 mins, or till warmed thru. Moderately stuff each and every baguette piece with mushroom aggregate and best with mozzarella.
Overhead view of three portobello mushroom and spinach subs on a cutting board.


Extra Scrumptious Mushroom Inspiration

Overhead view of three portobello subs on a wood cutting board.

Portobello Mushroom and Spinach Subs

You can by no means leave out the beef in those hearty and savory subs ready in 30 mins!