In a small bowl, combine the mayo, both mustards, Worcestershire, and honey, and mix well.
1 teaspoon Mayonnaise, 1 teaspoon Dijon mustard, 1 teaspoon Yellow mustard, ¼ teaspoon Worcestershire sauce, 1 teaspoon Honey
Spread the honey mustard over one side of each slice of bread.
2 slices Bread
Top the slices with sliced onions and tomatoes, then a sprinkle of salt.
¼ small Red onion, ¼ Tomato, ¼ teaspoon Salt
Add a layer of cheese, then sliced ham.
1 slice Smoked gouda, 3 slices Ham
Crack some black pepper over top and add fresh spinach.
¼ teaspoon Pepper, 1 cup Fresh spinach
Top with the last slice of bread, sauce-side-down. Slice, and enjoy!