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Outback Steakhouse · Steak

Slow-Roasted Prime Rib (10oz)

The Slow-Roasted Prime Rib (10oz) sits on the middle of the menu of Outback Steakhouse's Steak section at 680 calories per serving. It pairs 68g of protein with 0g of carbohydrates and 45g of total fat, and contributes 820mg of sodium toward the FDA's 2,300mg daily reference value.

Moderate · 680 cal 68g protein 0g carbs 45g fat

What's in the Slow-Roasted Prime Rib (10oz)?

At 680 calories per serving, the Slow-Roasted Prime Rib (10oz) represents about 34% of a 2,000-calorie daily intake. On the macronutrient side, roughly 40% of those calories come from protein, 60% from fat, and 0% from carbohydrates — a profile typical of Outback Steakhouse's Steak section. Sodium is often the line to watch with sit-down chain entrees, and this dish delivers 820mg, or about 36% of the FDA's daily reference value. If you're watching salt, pairing the Slow-Roasted Prime Rib (10oz) with a side salad (dressing on the side) and water rather than a sweetened beverage is the standard mitigation. Like most items at Outback Steakhouse, the dish is built for shareable portions and is plated at restaurant scale rather than a strict single serving. Boxing half of it before you start is one of the simplest ways to bring the per-meal calorie load down meaningfully without giving up the experience.

How this fits a 2,000-calorie day

One serving of the Slow-Roasted Prime Rib (10oz) supplies 680 calories, which represents roughly 34% of a 2,000-calorie reference day. That is a moderate restaurant-portion meal — generous compared to a home-cooked plate but not at the upper end of the chain's menu. A side salad or a smaller appetizer can round it out without pushing the day over budget.

The macronutrient split lands at roughly 40% protein, 0% carbohydrate and 60% fat by calorie share — a useful frame because raw gram counts often understate how much of a dish's energy actually comes from fat. Protein delivery is meaningful here at 68g per serving, which can keep satiety high relative to carb-heavy or fat-heavy alternatives.

Sodium clocks in at 820mg, or about 36% of the FDA's 2,300mg daily reference value. That is well within a reasonable share for a single meal and gives plenty of room for the rest of the day. Saturated fat is the other line worth watching at 21g — about 105% of the daily reference value — primarily a long-term cardiovascular consideration rather than a single-meal one.

Protein
68g
136% of daily reference
Carbs
0g
0% of daily reference
Fat
45g
58% of daily reference
Sodium
820mg
36% of daily reference

Allergen profile

No major allergens flagged

No major allergens are flagged on this item in the chain's posted nutrition disclosure. That said, every full-service restaurant kitchen handles wheat, dairy, eggs and seafood somewhere on the line, so cross-contact remains possible. If you have a severe allergy, telling the server before ordering — and asking for the manager's confirmation that the kitchen can accommodate — is the standard precaution.

How it stacks up against the casual-dining category

Across the 52 Steak entries we track in this category — averaging 723 calories and 938mg sodium per serving — the Slow-Roasted Prime Rib (10oz) at Outback Steakhouse sits roughly 6% lighter than the category average. It also delivers 118mg less sodium than the typical Steak item we list, which is the more useful number if you're cross-shopping menus on the way to a reservation.

For direct cross-shopping, here are the closest Steak matches we track at competing chains:

Ordering strategy

If the Slow-Roasted Prime Rib (10oz) is the entrée you want, the highest-leverage adjustments are usually the ones that change the surrounding meal rather than the dish itself. Because the entrée itself is moderate, you have headroom for an appetizer or a starter side without dropping into restrictive territory — useful for a longer dinner where the goal is to stretch the meal rather than minimize it. Sauces, dressings and finishing oils are routinely the largest hidden source of calories on a casual-dining plate; getting them on the side gives you direct portion control without changing the dish you actually want to eat.

Ingredients summary

Slow-roasted prime rib, au jus, horseradish

Lighter alternatives at Outback Steakhouse4 Steak options under 680 cal
See full Steak section →

The bottom line

The Slow-Roasted Prime Rib (10oz) from Outback Steakhouse is a moderate entry on the chain's menu at 680 calories and 820mg of sodium per serving. Protein delivery is strong, which is the dish's most useful nutritional feature. Anyone tracking sodium specifically — including most people on blood-pressure medication — should weigh this dish against the chain's lower-sodium options on the same menu before committing.