1. Combine first 5 ingredients. Chill. Place seeds in a heavy-duty zip-top plastic bag; seal. Crush seeds with a rolling pin. Sprinkle salt and 1/4 teaspoon pepper over steaks; press crushed coriander onto both sides of steaks.
2. Coat a large nonstick skillet with cooking spray; place over medium-high heat until hot. Add steaks; cook 4 minutes on each side until medium-rare or to desired degree of doneness. Serve fish with mayonnaise mixture.
carbo rating: 2