Preheat the oven to 180C/160C Fan/Gas 4.
Put the salmon fillet on a lightly oiled baking tray. Drizzle over the lime juice and a little olive oil. Sprinkle with the chilli flakes and paprika and season with salt and pepper. Bake for about 10 minutes, or until cooked through.
Meanwhile, heat a tablespoon of oil in a frying pan. Add the mushrooms and stir-fry for 5 minutes. Add the broccoli and stir-fry until cooked to your liking. Add the garlic and fry for 1 minute, then stir in the parsley. Serve immediately with the salmon.