Rinse the greens and the broccoli and let them drain in a colander (or use a salad spinner to remove water).

Heat the oil in a wok or large/deep skillet over high heat. When it starts to lightly smoke, add the broccoli. Cook, stirring, for 1-2 minutes.

Add the garlic and the greens. Stir to combine them with the broccoli, and sprinkle everything with 1/2 teaspoon of salt. Cook, stirring, for several minutes until the vegetables start to wilt.

Add 1/4 cup water and put the lid on the pan so the vegetables can steam. Let them steam for 2 minutes.

Remove the lid and add the oyster sauce and hoisin sauce. Stir everything to get the sauce coating all the veggies, and add more salt if needed. If you like your vegetables more well-done, cook for another minute or so.

Transfer to a plate, sprinkle everything with white pepper, and serve with rice and your favorite protein.