Easy Beef Pepper Rice Bowl Inspired by Pepper Lunch

Ingredients

• 2 tablespoons avocado oil
• 1 small onion, thinly sliced
• 3 cups cooked short grain white rice
• 1/2 pound thinly sliced shabu shabu beef or ribeye
• 1/2 cup corn kernels
• 2 tablespoons unsalted butter
• 2 green onions, sliced
• 1 teaspoon freshly ground black pepper, or to taste
• 2 tablespoons soy sauce or tamari
• 1 tablespoon oyster sauce
• 1 tablespoon honey
• 1 tablespoon mirin or rice vinegar
• 2 garlic cloves, minced