Preheated the oven at 350f.
Rinse and dry the fish. Beat lemon juice, honey, mustard, salt and pepper together and 3 tablespoons of olive oil. Put the salmon in a bowl and marked in this mixture while preparing the vegetables.
In a large bowl, mix the onion, garlic, leeks, spinach, dill or fennel, sweet potatoes, remaining olive oil together, the lemon zest, 1 cup of feta, salt And pepper.
Place the mixture of vegetables on the bottom of a glass pan -proof glass pan. Place the marinated salmon steaks at the top. Pour any marinade left in the bowl on the salmon and sprinkle with the remaining feta. Cover with parchment, then an aluminum sheet and cook for about 35 minutes, or until the salmon is tender from a fork and the passionate and soft vegetables. Remove and serve.
