I chopped up broccoli and tofu cubes and microwaved covered until they were all hot and the broccoli was nicely cooked. I then microwaved soy sauce, sugar, rice wine vinegar, ginger garlic paste, and corn starch in a glass cup until it combined then I mixed it together.
I don’t think it is really that different than steaming. I don’t see anything on Dr. Gregers site about it really. I eat so many iron rich foods I’m not sure I worry about the levels in one food or another. Beans, tofu and popcorn are also high in iron
https://nutritionfacts.org/video/flashback-friday-second-strategy-to-cooking-broccoli/