Potbelly Prime Rib Steak Sandwich: Savory Hit in 715 Calories
What is a Potbelly Prime Steak Sandwich?The Potbelly Prime Rib Sandwich is a rich, hearty menu addition introduced in April 2025. Priced at $13.29 and containing 715 calories, it features tender sliced prime rib layered with Swiss cheese, house-made caramelized onions, and creamy garlic aioli, all served on perfectly toasted bread. This satisfying lunch option delivers deep, savory flavors that steak lovers crave. Pair it with chips, a fresh salad, or a chocolate shake to round out your meal at your local Potbelly shop. Want to know what’s included, the type of steak Potbelly uses, or its nutrition details? Keep reading to explore toppings, health insights, and why this sandwich is quickly becoming a fan favorite. Discover more at The Potbelly Menu.

$13.29 715 cal
Prime Rib Steak
Tenderly sliced prime rib steak layered with melted Swiss cheese, house-made caramelized onions, and rich garlic aioli, all served warm on perfectly toasted bread.
You Crave a Hearty, Premium Lunch
You’re looking for a lunch that’s rich, satisfying, and made with premium ingredients. Many sandwiches feel heavy or lack depth, but the Rib Steak Sandwich from Potbelly delivers bold, savory flavors without compromise. If you’re watching calories or points, you might ask, Is a Prime Rib Sandwich from Potbelly healthy? or How many calories are in a Potbelly Prime Rib Sandwich? This sandwich features high-quality steak with nutrition that fits your goals and can be ordered easily for solo meals or group lunches.
We Understand Lunch Should Be Bold and Fulfilling
Some days a simple sandwich or salad just doesn’t satisfy. You want tender steak paired with savory toppings, whether grabbing a quick bite or a box for the team. Balancing rich flavors with dietary goals can be tricky, but lunch should feel indulgent yet balanced.
The Solution: Potbelly Prime Rib Steak Sandwich
Introduced April 14, 2025, the Prime Rib Steak Sandwich is Potbelly’s first permanent steak sandwich. It features tender sliced prime rib, Swiss cheese, housemade caramelized onions, and garlic aioli, toasted to perfection. Customize with extra toppings or make it a salad for a lighter option. Available at Potbelly shops or online for pickup and delivery.
Main Ingredients
What comes on a Potbelly Prime Steak Sandwich? Premium, flavorful ingredients: tender sliced rib steak, melted Swiss cheese, sweet-savory caramelized onions, and roasted garlic aioli on toasted signature bread. Potbelly sources high-quality steak to ensure every bite is juicy and satisfying.
Core Ingredients:
- Prime rib (tender, sliced, premium)
- Swiss cheese (melted, creamy)
- Caramelized onions (housemade, sweet-savory)
- Garlic aioli (savory, creamy)
- Bread (toasted signature roll)
Toppings & Add-Ons
| Customization Option | Cost | Calorie Impact |
|---|---|---|
| Add Hot Peppers | Free | +10–20 |
| Extra Cheese | $0.50 | +100 |
| Extra Onions | Free | +15–20 |
| Thin-Cut Bread | Free | -50 |
Pro Tip: Add Potbelly’s signature hot peppers for a spicy kick that complements the steak.
Flavor and Texture: A Rich, Savory Delight
The Prime Steak Sandwich blends tender, juicy prime rib with melted Swiss, sweet-savory caramelized onions, and creamy garlic aioli. Toasted bread adds a crispy finish, making it a rich, flavor-packed lunch distinct from other menu items like the Mediterranean or BLTA sandwiches.
Allergen & Dietary Notes
How healthy is the Prime Rib Sandwich? A standard sandwich contains 715 calories, 38g protein, 36g fat, 54g carbs, and 1350mg sodium. For a lighter option, skip the aioli or choose a salad-style version. Allergens include dairy (cheese, aioli) and gluten (bread). Opt for a salad bowl to make it gluten-free, or request no cheese/aioli if sensitive. Full nutrition details are available in the Potbelly Menu PDF.
| Nutrient | Amount per Sandwich |
|---|---|
| Calories | 715 |
| Protein | 38g |
| Total Fat | 36g |
| Sodium | 1350mg |
| Total Carbs | 54g |
How to Make a Potbelly Rib Steak Sandwich
To recreate at home:
- Gather Ingredients: High-quality prime rib , Swiss cheese, yellow onions, garlic aioli, and crusty bread.
- Prep Ingredients: Slice steak thinly, cook medium-rare; caramelize onions slowly with butter.
- Toast Bread: Slice and lightly toast at 350°F for 3–5 minutes.
- Assemble: Spread garlic aioli, layer steak, Swiss, and caramelized onions.
- Finish: Toast assembled sandwich for 2–3 minutes to melt cheese; serve warm.
Pro Tip: Use a cast-iron skillet to sear the steak for extra flavor.
What Kind of Meat Does Potbelly Use?
Potbelly uses high-quality, tender prime steak, selected for rich flavor and juiciness, ensuring a premium sandwich experience.
Pairing Your Sandwich: Build a Full Meal
| Suggested Pairing | Reason |
|---|---|
| Chips | Salty, crunchy complement |
| Soups | Chili or broccoli cheddar for warmth |
| Salads | Powerhouse for fresh greens |
| Shake | Chocolate for a sweet finish |
The Story of the Prime Steak Sandwich
This new addition to Potbelly’s menu is their first permanent steak sandwich. Featuring premium prime rib, Swiss cheese, caramelized onions, and garlic aioli, it quickly became a fan favorite.
Why Fans Love It
The steak and onions are a game-changer for lunch.
The garlic aioli makes it unforgettable.
Order Your Prime Rib Steak Sandwich Today
Available at Potbelly shops or online. Customize toppings and check nutrition to fit your goals. Perfect for solo lunch or group meals.
Conclusion
Potbelly Rib Steak Sandwich ($13.29, 715 calories) blends tender prime rib, Swiss cheese, caramelized onions, and garlic aioli on toasted bread. Introduced in April 2025, it’s ideal for those seeking bold, savory flavors. Customize with hot peppers or a salad-style version, and pair with chips, mac, soup, or a chocolate shake.
FAQs About the Prime Rib Steak Sandwich
What is a Prime Rib Steak Sandwich at Potbelly?
A signature sandwich priced at $13.29 with 715 calories, featuring prime steak, Swiss, caramelized onions, and garlic aioli on toasted bread.
What comes on a Potbelly Prime Rib Steak Sandwich?
Tender sliced prime rib, melted Swiss cheese, housemade caramelized onions, garlic aioli, and toasted bread.
How many calories in a Potbelly Prime Rib Steak Sandwich?
715 calories, 38g protein, 36g fat, 54g carbs. Full nutrition details in Potbelly PDF.
Is a Prime Rib Steak Sandwich from Potbelly healthy?
It’s protein-rich but contains 715 calories and 1350mg sodium. Opt for salad-style or skip aioli for fewer calories.
How to make a Potbelly Prime Rib Steak Sandwich?
Layer prime rib, Swiss, caramelized onions, and garlic aioli on toasted bread, then melt the cheese.
What is the new steak sandwich at Potbelly?
The Prime Steak Sandwich, launched April 14, 2025.
What kind of meat does Potbelly use?
High-quality, tender sliced prime rib , selected for rich flavor and juiciness.
