Hummus and musroom sandwich

• Prepare an egg-free  vegan mayonnaise and mix with mustard sauce.
• Make  the  hummus. 
• Toast the tomato slices on the grill. Set aside.
• Cut the garlic into brunoise and sauté with the sliced mushrooms. Season with salt and set aside.
• Peel and  cut the avocado slices . Season with salt and lemon.
• Toast the sliced bread on one side.

SET UP 

• Put the hummus, watercress and tomato on a slice of bread.
• Add another bread slice. Top it with a tablespoon of mustard sauce, the mushroom and avocado.
• Cover with the last slice of bread.
• Remove the crusts with a serrated knife and cut the sandwiches in two halves (rectangular shape).
• Place on a plate with a dessert knife and fork.