Prepare rice: Bring 1 cup water, minced ginger, salt to boil. Add 1 cup rice and coconut milk, bring to boil again. Reduce heat to low, cover, and cook until liquid is absorbed and rice is done (approximately 15 minutes). Fluff, and stir in cilantro (if desired).
Sprinkle steak evenly with 3/8 teaspoon salt and pepper. Place steak on grill rack coated with cooking spray; grill 4 minutes on each side or until desired degree of doneness. Let steak stand 5 minutes. Cut steak diagonally across grain into think slices.
Combine remaining 1/8 teaspoon salt, cilantro, and next 3 ingredients (through jalapeno if using) in a medium bowl; toss. Top with peanuts.
Steak may be served atop salad greens with rice (cooked according to directions on package).