Lay the squash slices in a single layer on paper towels. Sprinkle lightly with salt. Put a layer of paper towel on top. Allow to sit for 15 minutes. This step removes some of the moisture from the squash.
Preheat the oven to 400°. Spray a 9x13 casserole dish with cooking spray.
In a a small bowl, mix together 1 t. salt, pepper, smoked paprika, onion powder, and garlic powder.
Put half the squash in the casserole dish in a single layer. Sprinkle with half the seasoning mixture, drizzle with a little olive oil, and add half the cheddar and half the parmesan. Repeat.
Toss the cracker crumbs with another drizzle of olive oil. Scatter the crumbs on top of the casserole. Bake for 25 minutes or until the squash is tender and the crumbs are brown.