Directions:
- Preheat oven to 350 degrees F (175 degrees C).
- Melt butter in a skillet over medium heat. Cook and stir sweet onion in hot butter until browned, 5 to 7 minutes; transfer to a bowl. Add mayonnaise to the onion and stir; pour into a 9x13-inch baking dish. Sprinkle Swiss cheese over the mixture.
- Bake in preheated oven until the top is bubbling and lightly golden, about 35 minutes.
Nutrition Facts
| Amount Per 1 Serving | |||
| Calories | 504.89 Kcal (2114 kJ) | ||
| Calories from fat | 410.7 Kcal | ||
| % Daily Value* | |||
| Total Fat | 45.63g | 70% | |
|---|---|---|---|
| Cholesterol | 72.79mg | 24% | |
| Sodium | 343.98mg | 14% | |
| Potassium | 137.79mg | 3% | |
| Total Carbs | 8.98g | 3% | |
| Sugars | 4.97g | 20% | |
| Dietary Fiber | 0.74g | 3% | |
| Protein | 15.72g | 31% | |
| Vitamin C | 3.7mg | 6% | |
| Calcium | 445.7mg | 45% | |
| Amount Per 100 g | |||
| Calories | 299.93 Kcal (1256 kJ) | ||
| Calories from fat | 243.97 Kcal | ||
| % Daily Value* | |||
| Total Fat | 27.11g | 70% | |
|---|---|---|---|
| Cholesterol | 43.24mg | 24% | |
| Sodium | 204.34mg | 14% | |
| Potassium | 81.85mg | 3% | |
| Total Carbs | 5.34g | 3% | |
| Sugars | 2.95g | 20% | |
| Dietary Fiber | 0.44g | 3% | |
| Protein | 9.34g | 31% | |
| Vitamin C | 2.2mg | 6% | |
| Calcium | 264.8mg | 45% | |
* Percent Daily Values are based on a 2000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
Find out how many calories should you eat.
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