Preheat oven to 450 degrees.
Arrange the zucchini slices in 1 layer in several sheet pans which have been lightly brushed with some of the oil. Lightly brush the tops with some of the remaining oil and bake the slices for 7 to 10 minutes or until they are golden brown. Sprinkle with salt to taste and let cool. Transfer to a serving bowl and toss with the lemon juice, basil and pepper flakes.