Eggplant, Kale, Tomato, & Bacon Panini

slices of fresh (crusty sourdough bread)

large tomato, (sliced)

slices of bacon

kale

slices large of eggplant, (sliced about 1/8-inch thick)

olive oil

Kerrygold Killaree cheddar cheese, (shredded (or any type of cheese you prefer))

unsalted butter, (room temperature)

Salt & pepper