Mina's Baked Snapper

• 2 jalapenos
• 1 fish such as snapper (whole)
• 1 fronds set aside (chopped)
• 1 bunch oregano leaves only (fresh)
• 350 ml basic tomato sauce
• 140 gr gaeta olives
• 120 ml dry wine (white)
• 60 ml extra-virgin olive oil
• 1 slice head fennel