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A softly folded, golden-yellow omelet with browned patches, its cut edge showing melted pale cheese and small pieces of translucent onion, served on a plate.
●Low GI

Cheese and onion omelet Calories

High-protein omelet with cheese and onion

CALORIES · 100 G

196kcal

GI

2low

POTASSIUM · 100 G

170mg

FIBER · 100 G

0.4g

Quick answer

1 piece (medium) of Cheese and onion omelet (130 g) has 255 calories. That works out to 196 calories per 100 g. It contains 4 g of carbs, 16.1 g of protein, 19.2 g of fat and 0.5 g of fiber. Its 14.3 µg of Biotin covers 48% of the Daily Value. Its glycemic index is 2 (low), so it raises blood sugar slowly.

Cheese and onion omelet Nutrition Facts

Selected: 1 piece (medium) · 130 g

255

KCAL / 130G

Carbs

4g

· 1% DV

Protein

16.1g

· 32% DV

Fat

19.2g

· 25% DV

Fiber

0.5g

· 2% DV

DV is the share of the daily value covered, on a 2,000 kcal reference diet.

Calories come from: Carbs 6% · Protein 25% · Fat 69%

Cheese and onion omelet nutrition facts table · 1 piece (medium) (130 g)

NutrientAmount% DV
Calories255 kcal
Total fat19.2 g25%
Saturated fat6.76 g34%
Trans fat0.16 g
Sodium416 mg18%
Total carbohydrate4 g1%
Fiber0.5 g2%
Protein16.1 g32%

Calories: Calories measure energy. Average daily need is 2,000 kcal. Excess calories are stored as fat, too few cause weight loss.

Carbs: Your body's primary energy source. The brain runs exclusively on carbs. Daily need: 275g.

Protein: Essential for muscle repair and cell growth. Daily need: 50g. Keeps you full and boosts metabolism.

Fat: Needed for hormone production and vitamin absorption. Daily need: 78g. Limit saturated fats, choose unsaturated.

Fiber: Critical for digestive health and satiety. Daily need: 28g. Stabilizes blood sugar, lowers cholesterol.

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How Many Calories in 1 Medium Cheese and onion omelet?

ServingAmountCalories
1 piece (medium)130 g255 kcal
1 ounce (mini)28 g55 kcal
0.25 piece (quarter)33 g65 kcal
½ piece (half)65 g127 kcal
1 piece (small)90 g176 kcal
100 g100 g196 kcal
1 cup (diced)140 g274 kcal
1 piece (large)180 g353 kcal
1 serving (double)220 g431 kcal

Calculated from 196 calories per 100 g.

Frequently Asked Questions About Cheese and onion omelet

How do you make a cheese and onion omelet?

Cook finely chopped onion in a lightly oiled pan until soft, then pour in beaten eggs. When the eggs begin to set, add the cheese, fold the omelet, and cook gently until the center is no longer runny.

What cheese is best for a cheese and onion omelet?

Cheddar, Swiss, feta, and other melting cheeses all work in a cheese and onion omelet. Cheddar gives a familiar sharp flavor, while feta stays crumbly and salty; taste before adding extra salt.

Should you cook the onion before adding eggs to a cheese and onion omelet?

Yes, soften the onion before adding eggs to a cheese and onion omelet. Raw onion may remain sharp and crunchy by the time the eggs are done; cook it over medium heat until tender, then add the eggs.

How do you keep a cheese and onion omelet fluffy?

Beat the eggs just before cooking and use medium-low heat to keep a cheese and onion omelet tender. Avoid overfilling the pan, and cover it briefly if the top needs help setting without browning the bottom.

How do you stop a cheese and onion omelet from sticking?

Use a sound nonstick pan and preheat it before adding a little cooking fat. Pour in the eggs for the cheese and onion omelet only after the fat is warm, and loosen the edges once they begin to set.

Why is my cheese and onion omelet watery?

A cheese and onion omelet can turn watery when the onions release moisture or the cheese has a high water content. Cook the onions until their liquid evaporates and drain brined or especially wet cheese before adding it.

When should you add cheese to a cheese and onion omelet?

Add the cheese to a cheese and onion omelet when the eggs are mostly set but still slightly moist on top. This gives it time to soften as the omelet finishes cooking without scorching it in the pan.

What can you serve with a cheese and onion omelet?

A cheese and onion omelet pairs well with toast, a green salad, or sliced tomatoes. For brunch, roasted potatoes make it a heartier plate; add fresh herbs if you want a brighter flavor.

Can you make a cheese and onion omelet ahead of time?

You can cook a cheese and onion omelet ahead, but it is best freshly made because reheating firms the eggs. If preparing for later, cook the onions in advance and refrigerate them separately, then make the omelet just before serving.

How long do cheese and onion omelet leftovers keep?

Refrigerate leftover cheese and onion omelet promptly in a covered container and eat it within three to four days. Reheat only the portion you plan to eat, until it is steaming hot throughout.

Cheese and onion omelet Vitamins & Minerals

Vitamins

Biotin

14.3µg · 48% DV

B12

1.01µg · 42% DV

B2

0.42mg · 32% DV

Vitamin A

234µg · 26% DV

Minerals

Selenium

25µg · 45% DV

Phosphorus

286mg · 41% DV

Calcium

221mg · 22% DV

Iodine

31µg · 21% DV

Sodium

416mg · 18% DV

Potassium ⭐

221mg · 7% DV

Cheese and onion omelet Glycemic Index

GLYCEMIC INDEX

2
Low
0 Low5570100

GLYCEMIC LOAD

0.1
Low

Accounts for portion size — a more realistic measure than GI alone.

How to Burn Off Cheese and onion omelet

To burn the 255 calories in 1 piece (medium) (130 g):

🚶

63min

Walking (5 km/h)

🏃

26min

Running (8 km/h)

🚴

35min

Cycling

🏊

30min

Swimming

Times are calculated with the MET equation for a 70 kg adult. Actual burn varies with your weight, age and pace.

What is Cheese and onion omelet?

Cheese and onion omelet is a simple pan-cooked dish made by folding or topping beaten eggs with onion and cheese. It is a familiar home-style combination rather than a dish tied to one specific origin; the cheese may be cheddar, feta or another variety, depending on local taste. Gently cooked onion turns sweet, while melting cheese adds a savoury richness to the soft eggs.

Serve it hot for breakfast or a quick lunch, with toast, salad or sliced tomatoes; in Turkey, similar omelets are often part of a breakfast spread alongside tea and fresh vegetables. It is a protein-rich choice, providing 12.4 g of protein per 100 g. For a lighter plate, use less cheese and cook the onion with just a little oil.

How Nutritious Is Cheese and onion omelet?

Nutrient density

High

63/ 100

How many vitamins, minerals and how much fiber this food carries per calorie. A high score means a lot of nutrition for few calories.

Satiety score

Medium

41/ 100

An EatBetter score computed from fiber, protein and calorie density. A high score means staying full longer on the same calories.

Both scores are calculated per 100 g and do not change with the selected portion. The satiety score is EatBetter's own calculation, not a clinical measure.

Is Cheese and onion omelet Processed?

NOVA 2

Minimally Processed

1. Unprocessed

2. Minimally Processed

3. Processed

4. Ultra-Processed

NOVA classifies foods into 4 groups by industrial processing. NOVA 1 (unprocessed) is the healthiest.

Does Cheese and onion omelet Contain Allergens?

Contains these allergens:

Gluten free
Dairy yes
Eggs yes
Peanuts free
Tree nuts free
Fish free
Soy free
Sesame free

Which Diets Is Cheese and onion omelet Good For?

Vegan

— Not suitable

Vegetarian

✓ Suitable

Gluten-Free

✓ Suitable

Dairy-Free

— Not suitable

Mediterranean

✓ Suitable

Paleo

✓ Suitable

Whole30

— Not suitable

DASH

— Not suitable

Keto

✓ Suitable

Low FODMAP

— Not suitable

Cheese and onion omelet Fat Profile

SATURATED

6.76g

MONOUNSATURATED

7.93g

POLYUNSATURATED

2.21g

⚖️

Omega 6:3 ratio 18.9:1

Above the ideal 4:1 (18.9:1).

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Nutrition data compiled from USDA FoodData Central and scientific sources.