Trim any unsightly ends off the broccoli and slice any that are particularly large.
Lie the garlic flat on your chopping board, and with the side of your knife, bash down hard on the garlic. Peel off the skin and discard, we'll be using the garlic as it is, bruised and in 2-3 piece. Or one, if it remained whole, it doesn't matter.
Thinly slice the ginger.
Let's get Cooking
Heat the oil in a medium-large wok or frying pan, on medium heat.
Fry the garlic and ginger for 30 seconds.
Toss in the cabbage, tenderstem broccoli, chillies (if using), soy sauce and oyster sauce. Stir to mix well and bring up to a simmer.
Leave to cook, uncovered, over a low flame for 3 minutes. If your vegetables are getting dry, add a splash of water.
Increase the heat to medium-low, and push the vegetables to the side. Place the 2 salmon fillets, skin side up, in the middle. Leave to cook for 2 minutes.
Very gently, turn the salmon over, so skin side down, and cook for another 3 - 5 minutes. This will depend on the thickness of your fish as well as how well done you like it. I like to finish mine when the middle is still a touch pink.Pile some of the vegetable over the salmon to add a little flavour.
When done, take it off the heat and finish with the lemon juice drizzled over, and freshly ground black pepper and serve as discussed in the post (with any grain or on its own, as a low carb meal).You could also finish it with a light drizzle of sesame oil or chilli oil.