Clean the fish and cut into fillets (otherwise let peeled but whole). If you like marinade them with olive oil and fresh rosemary for few hours.
2
Peel the beans and a nonstick pan, add the olive oil. Sautée leek with onion and add beans. The steam them for a few minutes by placing the lid, and then add vegetables stock (so that when green beans are slightly soft and ready to almost evaporate).
3
A few minutes before the beans are tender(al dente) place on the sheet of aluminum foil, put the fish on the top, add the herbs(dill, capers and lemon zest) and spices and cover, up our fish to be cooked.
4
For FAVA paste: Sauté garlic and chopped onion (medium intensity). Add cubed tomato and continue cooking for about 2 minutes. Then add dried fava (rinse well before) and continue adding the vegetable broth. Cover with lid and lower heat. Once the beans soften and lose fluids to remove from the heat and place in blender. We work well for several seconds until creamy texture adding paprika powder. Fix taste with salt, pepper, lemon juice. Ready for eat.