Veggie Breakfast Sandwich

Bahan-bahan (1 porsi)

• 1 whole wheat English muffin, sliced in half and toasted (or two fairly small slices of bread, toasted)
• 2 teaspoons mayonnaise
• ½ ripe avocado, mashed
• Salt and freshly ground black pepper
• 1 large egg
• ½ teaspoon water
• 1 teaspoon butter or olive oil
• 2 small slices of cheddar or Monterey Jack cheese (about ½ ounce, any other melty cheese will do)
• 1 slice of ripe red tomato, if tomatoes are in season (optional)
• Thinly sliced red onion
• Several dashes of hot sauce (like Tabasco or Cholula)
• Small handful arugula or sprouts