That sounds like a classic baked, one-dish comfort meal—very much in the spirit of Great Depression cooking: simple, cheap, and filling.
Here’s a complete version based on what you described:
🥔 Baked Beans & Potato Casserole (4–Ingredient Supper)
Ingredients
- 3–4 russet potatoes (thinly sliced)
- 1 can baked beans
- 1 small onion (sliced)
- 2–3 tablespoons butter (or a little oil)
Instructions
- Preheat oven to 180°C (350°F).
- Grease a ceramic baking dish lightly with butter or oil.
- Layer the raw sliced potatoes evenly on the bottom.
- Add a layer of sliced onions.
- Pour the baked beans over the top, spreading them out evenly.
- Dot with butter across the surface.
- Cover with foil (or a lid) and bake for about 60 minutes.
- Remove the cover and bake another 15–20 minutes until the top thickens and potatoes are tender.
Tips to make it better (still cheap!)
- Add a pinch of salt and pepper
- A little garlic or chili flakes for flavor
- If you have it, a bit of leftover meat or cheese makes it richer
Why it works
- Potatoes = filling base
- Beans = protein + flavor
- Onion + butter = depth and richness
It’s the kind of meal that looks simple but ends up surprisingly satisfying and cozy.
If you want, I can tweak this into a more modern version (crispier top, more flavor) while keeping the same budget-friendly idea.
