Jul 09 2026
Restaurants›The Iowa Taproom›Prime Rib & Mashed Potatoes Buffet Recipe

Prime Rib & Mashed Potatoes Buffet Recipe

Inspired by The Iowa Taproom
Time3h
Serves8

Includes prime rib, mashed potatoes, assorted vegetables, Caesar salad, and dinner rolls.

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Ingredients

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Prime Rib

Mashed Potatoes

Assorted Vegetables

Caesar Salad

Dinner Rolls

Method

Prime Rib

  1. 1

    Prepare the Prime Rib

    Preheat your oven to 450°F (232°C). In a small bowl, mix together the salt, black pepper, garlic powder, and olive oil to create a rub. Pat the prime rib roast dry with paper towels and apply the rub evenly over the meat.

  2. 2

    Roast the Prime Rib

    Place the roast in a roasting pan, fat side up. Roast in the preheated oven for 20 minutes. Then, reduce the temperature to 325°F (163°C) and continue roasting for about 1.5 to 2 hours, or until the internal temperature reaches your desired doneness (130°F for medium-rare).

  3. 3

    Rest Before Serving

    Remove the prime rib from the oven, cover it loosely with foil, and let it rest for at least 20 minutes before carving.

Mashed Potatoes

  1. 4

    Prepare the Potatoes

    Peel and cube the russet potatoes. Place them in a large pot and cover with cold water. Add a pinch of salt and bring to a boil over high heat.

  2. 5

    Cook the Potatoes

    Once boiling, reduce to medium heat and cook until the potatoes are fork-tender, about 15-20 minutes. Drain the potatoes well.

  3. 6

    Mash the Potatoes

    Return the drained potatoes to the pot. Add butter, milk, salt, and black pepper. Mash until smooth and creamy. Adjust seasoning to taste.

Assorted Vegetables

  1. 7

    Prepare the Vegetables

    Wash and cut the carrots, green beans, and zucchini into bite-sized pieces.

  2. 8

    Cook the Vegetables

    Steam or boil the vegetables in a pot of salted water until tender, about 5-7 minutes. Drain and set aside.

Caesar Salad

  1. 9

    Prepare the Salad

    Wash and chop the romaine lettuce into bite-sized pieces. Place in a large salad bowl.

  2. 10

    Assemble the Salad

    Add the Parmesan cheese, croutons, and Caesar dressing to the bowl with the lettuce. Toss well to combine.

Dinner Rolls

  1. 11

    Serve the Dinner Rolls

    Warm the dinner rolls in the oven for a few minutes if desired. Arrange them on a serving platter.

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