Ingredients
1 tablespoon extra-virgin olive oil, plus more for the baking dish
Kosher salt
3 cups wide egg noodles (about 5 ounces)
1 1/2 cups sour cream
1/2 cup freshly grated Parmesan
12 ounces ground beef
1 red bell pepper, seeded and chopped
1 bunch scallions (white and green parts), finely chopped
1 tablespoon tomato paste
1 teaspoon Italian seasoning
One 14 1/2-ounce can petite diced tomatoes
2 cups grated Cheddar