This makes a quick dinner you can get it on the table in less than 30 minutes and it's easy enough for a work night. You could substitute Tilapia or any other mild white fish for the sole. From Sunset Kitchen Cabinet.
Put a 10- by 15-inch rimmed baking pan in oven as it preheats to 425 degrees F.
In a 9- or 10-inch-wide pan, beat eggs to blend. On a piece of wax paper, mix Parmesan cheese and flour. Rinse sole and pat dry. Dip in egg to coat, drain off excess, then coat fish in cheese mixture. Set fish in a single layer on wax paper.
Remove heated pan from oven; add oil and butter and swirl until butter is melted. Lay a piece of fish in pan; turn to coat with butter. Repeat with remaining fish, arranging pieces slightly apart in pan. Sprinkle fish evenly with macadamia nuts.
Bake, uncovered, in a 425-degree F. oven until fish is just opaque in thickest part (cut to test), 7 to 10 minutes. With a wide spatula, transfer fish to a platter. Garnish with watercress and lemon halves.