Heat oil in a large skillet over medium high heat until hot. Add oil and swirl the pan to coat well. Add zucchini. Cook and stir for a minute to coat the zucchini evenly with oil. Add the black bean sauce (or two tablespoons pre-made black bean sauce
). Stir and cook until the zucchini is just cooked through, but not too soft. Carefully taste the zucchini. Adjust the seasoning by adding more pre-made sauce (or salt), if necessary.