My granddaughter just made this last week. We liked it enough to make it again. This time, I went by a recipe on Food & Wine. But I also used mushrooms and topped it with chopped green onions.  Loco Moco with Miso Gravy

This savory, rich Hawaiian plate lunch includes a hamburger patty, a fried egg, and miso gravy served over a bed of fluffy rice.

loco moco meaning – crazy = comfort food

Ingredients
Gravy
• 1/2 cup salted butter
• 1 medium (10-ounce) yellow onion, finely chopped
• 1 tablespoon finely chopped ginger
• 1 tablespoon finely chopped garlic (from 3 large cloves)
• 1/2 cup all-purpose flour
• 4 cups unsalted beef broth
• 1/3 cup white miso paste
• 1/2 teaspoon black pepper
Loco Moco
• 4 (6-ounce) hamburger patties, uncooked 
• 1 teaspoon kosher salt
• 1/2 teaspoon black pepper
• 3 teaspoons olive oil, divided
• 8 large eggs
• 8 cups steamed rice
Additional Ingredients
• Optional ⤵️
• Nori komi furikake, for topping
• Hawaiian chile pepper water (such as Poi Dog)

Directions
Prepare the Gravy
• Heat butter in Dutch oven over medium until melted. Add onion, ginger, and garlic. Cook over medium heat, stirring often, until onions are soft and translucent, about 10 minutes, reducing heat to low as needed if they start to sizzle or brown around the edges.
• Stir in flour to make a roux, mixing thoroughly with a wooden spoon, and cook, about 2 to 3 minutes, or until mixture is darkened, brown, and resembles chunky peanut butter.
• Whisk in beef broth gradually, about 1/4 cup at a time. Whisk in miso paste.
• Increase heat to high and cook until gravy is bubbling; reduce heat to medium-low after about 2 to 3 minutes (you’ll know to lower it when it spits at you). Add black pepper, and cook until reduced by about one-third, whisking occasionally, 8 to10 minutes. Remove from heat; set aside to keep warm, whisking occasionally.
Prepare Loco Moco
• Sprinkle hamburger patties evenly on both sides with salt and pepper. Heat 1 teaspoon of the oil in a medium (10-inch) seasoned cast-iron skillet over medium-high. Cook 2 hamburger patties 6 to 8 minutes on each side until internal temperature is 160°F, or to desired degree of doneness; set aside on a plate. Do not wipe skillet clean. Repeat with remaining 2 patties.
• Heat 1/2 teaspoon of the oil in a medium (10-inch) nonstick skillet over medium. Working in 4 batches, fry 2 eggs over medium about 2 minutes or until whites are set and yolks are runny, or to desired doneness. Repeat with remaining 6 eggs.
• Place 2 cups rice in each serving bowl, and top each with a cooked hamburger patty. Ladle about 1 cup of Gravy over each hamburger, then place 2 cooked eggs on top. Sprinkle furikake over eggs as garnish. Splash with chile pepper water and serve.