Heat oven to 200ºF and turn off. (Used to keep the fried slices warm.)
Pare and slice the zucchini into 1/4" slices.
Crush the soda crackers by placing them in a large zippered bag and rolling with a rolling pin or crushing them with your hands. The finer the crackers are crushed, the better the breading will coat the slices.
Pour oil in skillet and heat on medium-high.
Place the cracker crumbs and eggs into individual breading pans.
Dip the slices into the egg and then the cracker crumbs.
Place the breaded slices into the hot skillet. Take care not to crowd the slices.
Fry until the top of the slices become moist, and the bottom side is golden brown. Turn and fry until the brown, and a fork easily pierces the zucchini.
Remove to a paper towel-lined platter. Place platter in a previously warmed oven to keep the slices warm while frying the remaining slices.
Continue working in batches until all slices are fried.
Sprinkle with salt and pepper, if desired, and serve.