Baked Crab, Pepper And Spinach Frittata

• 6 eggs
• 2 bell peppers (red)
• 1 lbunch
• 130 gr dungeness crab meat well
• 120 gr onion (minced)
• 60 gr spinach (fresh)
• 55 gr asiago
• 30 ml olive oil
• 14 gr butter softened
• 8 gr herbs (minced fresh)