Farmer'S Sandwich - cooking recipe

Ingredients

3 slices rustic crusty bread (I like to toast mine first)
2 ounces honey mustard (2 parts whole grain mustard mixed with 1 part honey)
1/8 - 1/4 cup red onion, finely chopped
1 medium sized Hass avocado, sliced
4 slices thick cheddar cheese or 4 slices swiss cheese
1 large portabella mushroom, roasted and sliced
1 medium tomatoes, sliced

Preparation

Spread honey mustard on three slices of bread. Sprinkle the bread with red onion. On one slice of bread, layer the avocado and cheese. If using corned beef, add it now.
On another slice of bread, layer the mushroom, tomato and cheese.
Bake both slices in a 350 degree Fahrenheit oven for two minutes.
Put the two pieces together with the third slice of bread between them.
This is a very thick sandwich and may need a skewer or long pick to hold it together. I make 2 sandwiches out of it, leaving out the center slice of bread!