Discover the ultimate comfort food makeover with this Simple Crunchy Potato and Onion Casserole—an easy, low-calorie dish that doesn’t skimp on texture or flavor! Made with thinly sliced Yukon Gold potatoes and sweet caramelized onions, this casserole is seasoned with a fragrant blend of garlic powder and dried thyme, then topped with golden panko breadcrumbs for an irresistible crunch. Light on calories but packed with savory goodness, it’s perfect for weeknight dinners or as a crowd-pleasing side dish. With minimal prep and a quick bake time, this recipe is a must-try for anyone craving a satisfying yet guilt-free casserole. Pair with a fresh green salad or lean protein for a perfectly balanced meal!
Preheat your oven to 400°F (200°C). Lightly grease a medium-sized casserole dish with cooking spray.
Wash and peel the potatoes. Slice them into very thin rounds (about 1/8 inch thick) using a sharp knife or mandoline slicer.
Peel the onion and slice it into thin rings. Separate the rings and set aside.
Heat 1 tablespoon of olive oil in a skillet over medium heat. Add the onion rings and cook for 5-7 minutes, stirring occasionally, until they are slightly caramelized and softened. Set aside.
In a small bowl, mix the garlic powder, dried thyme, salt, and black pepper together.
Layer half of the sliced potatoes evenly across the bottom of the casserole dish. Sprinkle half of the seasoning mixture over the potatoes.
Spread the caramelized onions over the seasoned potato layer.
Arrange the remaining potato slices on top of the onions and sprinkle the rest of the seasoning mixture over the top.
Drizzle the remaining 1 tablespoon of olive oil evenly over the top of the casserole.
In a small bowl, mix the panko bread crumbs with 1 tablespoon of olive oil. If using Parmesan cheese, mix it in as well. Sprinkle the breadcrumb mixture evenly over the top of the casserole for a crunchy topping.
Cover the casserole dish with foil and bake for 25 minutes in the preheated oven.
Remove the foil and bake an additional 15 minutes, or until the potatoes are tender and the top is golden brown and crispy.
Allow the casserole to cool for 5 minutes before serving. Enjoy this wholesome, low-calorie comfort dish!
Calories |
2307 | ||
|---|---|---|---|
% Daily Value* |
|||
| Total Fat | 35.8 g | 46% | |
| Saturated Fat | 7.4 g | 37% | |
| Polyunsaturated Fat | 2.7 g | ||
| Cholesterol | 9 mg | 3% | |
| Sodium | 1786 mg | 78% | |
| Total Carbohydrate | 464.5 g | 169% | |
| Dietary Fiber | 38.1 g | 136% | |
| Total Sugars | 24.8 g | ||
| Protein | 61.2 g | 122% | |
| Vitamin D | 0.2 mcg | 1% | |
| Calcium | 605 mg | 47% | |
| Iron | 20.4 mg | 113% | |
| Potassium | 10433 mg | 222% | |
*The % Daily Value tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.