My favorite way to refuel after a long run is a banana blueberry protein smoothie.
To replenish glycogen stores goal is to get 0.5 to 0.75 gm of carbohydrate/kg of body weight (to convert pounds to kilograms, divide your weight in pounds by 2.2; ex: 150 pounds/2.2 = 68.2 kg ) within 30 minutes, up to 2 hours, after the end of your run. I use half a frozen banana and a cup of frozen blueberries to meet my needs. Plus, I love the taste of the 2 together and using the frozen fruit gives the smoothie and creamy, thick texture.
While carbs are the priority immediately after a run, protein is needed for muscle growth and repair. I prefer whey protein as it is easily absorbed and it is a natural source of BCAAs (no need for fancy supplements) including leucine the "king" of muscle growth stimulation. Protein recommendations for muscle synthesis is 0.25-0.4 g protein/kg/meal (1.6 gm protein/kg body weight per day).
Other great carb + protein refueling options are proats (protein powder in oatmeal), eggs and toast, fruit and Greek yogurt, fruit and cottage cheese, etc.
What's your favorite thing to eat to refuel?