Inside the bowl of a slow cooker, place honey, soy sauce, beef broth, grated garlic, sesame oil, rice vinegar, ginger, chili paste, onion powder, pepper, and cornstarch. With a whisk, combine all ingredients.
Place cubed beef inside slow cooker and toss to combine with sauce until all beef cubes are covered. Cover and cook on LOW for 8 hours or HIGH for 4 hours. In the last 30 minutes of cooking, prior to serving, cook 2 cups of rice according to package directions.
Meanwhile, steam broccoli in a steamer or microwave. In the final 5 minutes just prior to serving, add sesame seeds and green onions to the beef. To serve, build a bed of approx. 1/3 cup cooked rice, and top with beef and steamed broccoli.