Potato Gratin With Peppers, Onions And Tomatoes
A hearty potato gratin layered with peppers, onions, and tomatoes, bursting with Mediterranean flavors, perfect for family dinners or special gatherings.
Ingredients
Instructions
- Preheat oven to 325°F (160°C).
- In a 2-quart baking dish, spread 1 tablespoon of olive oil on the bottom.
- Scatter 1/4 of the minced garlic over the oil.
- Layer sliced potatoes, then yellow and red peppers, followed by sliced tomatoes and onion.
- Sprinkle salt, freshly ground pepper, garlic, and oregano between each layer.
- Pour remaining olive oil over the surface of the layered vegetables.
- Bake for 1 1/2 hours or until the vegetables are fork-tender.
Tips & Substitutions
For best results, choose waxy potatoes like Yukon Gold for their creamy texture. If you're short on time, pre-cook the potatoes in boiling water for 5-7 minutes before layering. Consider substituting the vegetables with seasonal varieties for a twist; zucchini or asparagus can work well. For additional flavor, add a sprinkle of grated cheese on top before baking, or mix in some herbs like thyme or rosemary.
Serving Suggestions
Serve this hearty gratin as a standalone dish or as a side to grilled meats or fish. It pairs beautifully with a fresh salad, such as a Tomato-Cucumber Cocktail, to balance the richness. For a complete Mediterranean meal, consider serving with crusty bread and a glass of white wine, enhancing the flavors of the vegetables.
Storage & Reheating
Leftovers can be stored in an airtight container in the refrigerator for up to 3 days. To reheat, place in a preheated oven at 350°F (175°C) for about 20-30 minutes until warmed through, covering with foil to prevent drying out. This dish also freezes well; thaw in the fridge overnight before reheating.
Nutrition & Diet Analysis (per serving)
Each serving of Potato Gratin With Peppers, Onions And Tomatoes contains roughly 432 calories, with 10g protein, 81g carbohydrates, and 14g fat. It is an excellent source of iron (145% of the Daily Value), dietary fiber (114% of the Daily Value), and vitamin C (111% of the Daily Value). Note that it is relatively high in sodium, at 1459mg per serving (63% of the Daily Value).
Estimated from ingredients & per-serving nutrition — verify against package labels for allergies or strict diets.
* % Daily Values based on a 2,000 calorie diet (FDA 2020).
Frequently Asked Questions
Can I make this gratin ahead of time?
Yes, you can prepare the gratin a day in advance. Assemble it completely, cover tightly with plastic wrap, and refrigerate. When ready to bake, remove the wrap and cook as directed, adding a few extra minutes to the baking time if it's straight from the fridge.
What can I substitute for olive oil?
If you prefer a different flavor, you can substitute olive oil with melted butter for a richer taste or avocado oil for a neutral option. Just keep in mind that the oil contributes to the overall flavor of the dish, so choose a substitute that complements the vegetables.
How do I know when the gratin is done?
The gratin is done when the vegetables are fork-tender and the top has a golden hue. If you want a crispier top, you can broil it for the last few minutes of baking. Keep an eye on it to prevent burning while achieving that perfect finish.
Nutrition is estimated from USDA FoodData Central ingredient data and may vary with brand, portion and preparation — see our methodology. This information is for general educational purposes only and is not medical or dietary advice (disclaimer).