Onion Mushroom Sandwich.

Ingredients-

Onion Mushroom Sandwich.
1 cup sliced portobello Mushrooms.
Sliced 1 average side Onion 
1 cup sliced gouda cheese 
Sliced whole wheat bread
2 tbs olive oil..

Method-
Heat up 1 tbs olive oil in a skillet at medium heat
Grill wheat bread on each side for 30 seconds then remove and set aside..
Heat up 1 tbs olive oil in a skillet at medium heat
Add sliced onion and mushroom
Cook for 3-4 minutes
Remove from heat and set aside
Lay 1 slice of cheese on grilled bread and scoop onions and mushroom on each slice of bread.
Add another slice of cheese, place another grilled bread on top
Repeat ass needed depending on desired portions.
Place sandwich on a baking pan or oven proof plate and place in a heated oven for 1-2 minutes to melt cheese.
Remove and serve right away..