Ingredients
Method
- Preheat oven to 400°F (200°C). Toss tomatoes with 1 tbsp oil and 1/4 tsp salt. Roast 12 minutes.
- Blanch green beans 4 minutes, then shock in ice water. Drain well.
- Sauté onion in remaining oil until soft, about 5 minutes.
- Mix soup, milk, cheddar, sautéed onion, beans, roasted tomatoes, and pepper in a bowl.
- Transfer to a 9x9-inch dish. Top with fried onion rings.
- Reduce the oven temperature to 350°F (175°C). Bake for 20 minutes, until the casserole is bubbling and the topping is golden.