Step 1

Place 4 slices sourdough on cutting board, plate, or other flat surface.

Step 2

Divide 2 tablespoons honey mustard into four ½-tablespoon portions. Spread ½ tablespoon honey mustard evenly across top side of each slice of sourdough.

Step 3

Divide 2 slices white cheddar cheese in half, creating 4 slices of cheese total. Place one "slice" of cheese on each piece of bread, covering honey mustard.

Step 4

Divide 4 slices deli turkey into 2 slices of turkey per sandwich. Place turkey slices on top of 2 slices of cheese-topped bread.

Step 5

Divide ½ cup fresh baby spinach into ¼ cup spinach per sandwich. Layer preferred number of thin tomato slices and ¼ cup baby spinach on top of each layer of turkey.

Step 6

Divide 4 strips cooked bacon into 2 slices bacon per sandwich and place each portion of bacon on remaining slices of cheese-topped bread.

Step 7

Close sandwiches, placing sandwich halves with bacon face-down on top of sandwich halves with turkey. Each sandwich should consist of the following layers: 1 slice sourdough, ¼ tablespoon honey mustard, 1 half-slice cheese, 2 slices deli turkey, thin tomato slices, ¼ cup baby spinach, 2 strips bacon, 1 half-slice cheese, ½ tablespoon honey mustard, and 1 slice sourdough.

Step 8

Divide 2 tablespoons butter into four ½-tablespoon portions. Spread ½ tablespoon butter on outside of each slice of bread (4 sides total).

Step 9

Place large skillet on stovetop over medium heat. When pan is warm, carefully place assembled sandwiches flat in skillet.

Step 10

Toast bottom slice of bread 3 to 4 minutes, then carefully flip sandwich over. Toast now-bottom slice of bread 3 to 4 minutes, or until cheese has melted and sandwich is warmed through.

Step 11

Transfer sandwiches to serving plates. Serve warm with desired sides.