Sprinkle 2 teaspoons salt over eggplant rounds in colander; allow to drain at least 30 minutes. Rinse salt off the eggplant.
Spread bread crumbs into a small shallow bowl and beat egg in a separate bowl. Dip eggplant into egg, allowing excess egg to drip off the eggplant; press into bread crumbs until eggplant slices are evenly coated on both sides.
Arrange coated eggplant on a baking sheet and drizzle with olive oil.
Bake in the preheated oven until lightly browned, about 10 minutes.
Mix remaining 1 teaspoon salt with ricotta cheese in a bowl. Spoon ricotta cheese mixture onto each eggplant.
Bake eggplant in the oven until cheese is heated through, 5 to 7 minutes.
Place 1 eggplant slice onto each pita chip; top with a cherry tomato and basil leaf.
Notes
You can also use fresh mozzarella in place of the ricotta, if desired.
Crackers or toast rounds can be substituted for the pita chips.
If eggplant rounds are large, cut in half so the eggplant fits on your crackers.