Nutrition Breakdown

O'Neill's Calories — Lowest to Highest

Browse calorie values for O'Neill's menu items, with official nutrition where available and estimated calories for uncovered items. Updated August 2026.

Coverage

100%

Average Calories

198 kcal

Lowest Item

18 kcal

Highest Item

500 kcal

50 / 50 items resolved USDA database: 50 Estimated: 0

Lowest Calorie Items at O'Neill's

Use this ranking to find lighter menu options quickly

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# Item Category Source Calories
1 Marinated Portobello Mushroom Salad salads and sandwiches USDA 18 kcal
2 Soup of the Day appetizers USDA 20 kcal
3 Steamed PEI Mussels appetizers USDA 40 kcal
4 French Onion Soup appetizers USDA 70 kcal
5 O'Neill's Special Cobb Salad salads and sandwiches USDA 81 kcal
6 Baked Potato sides USDA 93 kcal
7 Curry Sauce sides USDA 95 kcal
8 Fisherman's Pie burgers pies n things USDA 100 kcal
9 New England Clam Chowder appetizers USDA 106 kcal
10 Grilled Jumbo Shrimp appetizers USDA 110 kcal
11 Beef and Guinness Pie burgers pies n things USDA 114 kcal
12 Mash potato sides USDA 114 kcal
13 Mixed Country Salad salads and sandwiches USDA 122 kcal
14 Traditional Lamb Stew burgers pies n things USDA 129 kcal
15 Add Toppings to a Salad of Your Choice salads and sandwiches USDA 141 kcal
16 Caesar Salad Crisp salads and sandwiches USDA 150 kcal
17 Jalapeno Poppers finger food favorites USDA 152 kcal
18 Home made Crab Cakes appetizers USDA 155 kcal
19 Marinated Portobello Mushroom Sandwich salads and sandwiches USDA 167 kcal
20 Traditional Mild Irish burgers pies n things USDA 168 kcal
21 Chef Salad salads and sandwiches USDA 170 kcal
22 Irish Smoked Salmon salads and sandwiches USDA 172 kcal
23 Shepherd's Pie burgers pies n things USDA 173 kcal
24 French Fries sides USDA 179 kcal
25 Combo Platter finger food favorites USDA 200 kcal
26 Chicken and Cheese Quesadillas appetizers USDA 202 kcal
27 Mini Spring Rolls finger food favorites USDA 207 kcal
28 Traditional Fish and Chips burgers pies n things USDA 211 kcal
29 Potato Skins finger food favorites USDA 212 kcal
30 Mozzarella Sticks finger food favorites USDA 217 kcal
Nutrition sync is temporarily paused Missing official items: 0

Highest Calorie Items

Top calorie-dense picks based on current nutrition data

Onion Rings

sides 500 kcal

Machos

finger food favorites 483 kcal

Rice

sides 356 kcal

Garlic Bread

finger food favorites 343 kcal

Golden Fried Brie

appetizers 334 kcal

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How Estimated Calories Are Calculated

When official nutrition is unavailable, calorie values are estimated using menu-item keywords and then adjusted by portion size. These values are directional for comparison, not medical nutrition advice.

  • Base estimate: item-name tokens (for example burger, fries, salad, pizza, shake) map to baseline calorie ranges.
  • Portion weighting: ounce and gram values adjust the estimate (about 8 oz = 1.0x, about 230 g = 1.0x), then the value is capped within a safe range.
  • Size modifiers: small/kids items apply a lower multiplier, while large/xl/family/double items apply a higher multiplier.
  • Final output: estimates are rounded to whole calories and shown as Estimated in the source column.

O'Neill's Calories — Frequently Asked Questions

Questions about calorie values, estimates, and nutrition coverage.

How many O'Neill's items have calorie data?
O'Neill's currently has calorie values for 50 of 50 menu items (100% coverage). We first use official nutrition sources when available, then apply estimation fallback for unresolved items.

What is the lowest-calorie item at O'Neill's?
The lightest item currently tracked is Marinated Portobello Mushroom Salad at approximately 18 kcal. Use the ranked table to find other low-calorie meal choices.

Are O'Neill's calorie values official or estimated?
This page uses a hybrid model: 50 items use USDA database estimates, while 0 items are algorithmic estimates. Both are directional for comparison, not medical guidance.

Where can I compare calories and prices together?
Use the O'Neill's full menu prices page for price-focused browsing and the cheapest menu items page for budget picks. This calories page is built for nutrition-first filtering.

How to Use This Calories Page

Use this page to compare low-calorie and high-calorie items quickly before ordering. Official values are used where available, and estimated values fill the coverage gap for broad menu discovery.

Estimated values are directional and may vary by location, preparation style, and serving size. For strict dietary planning, cross-check with the official restaurant nutrition statement when available.