Season the hake fillets with salt and pepper.
Dust the fillets of hake with seasoned flour in a plastic bag (shake to coat evenly).
Lightly fry the fillets in hot olive oil till just cooked, approximately 10 minutes, and set aside on a warm plate covered with foil to keep warm.
Grate garlic and mix with the marrows and toss in the green pepper strips. Coat the mixture with a little olive oil and lemon juice. Allow to stand for a few minutes.
Drizzle more olive oil and add a little lemon juice if desired.
Serve on a warm plate.
Serving Suggestions: Serve by placing the fillets on top of the zucchini salad and sprinkle with fresh lemon zest and crushed black olives.