6 Easy Steps to a Customizable Casserole

Simple ways to whip up a comforting dish — without a recipe

It can be liberating to cook without a recipe, though depending on your skill in the kitchen and how frequently you’re cooking at home, the turnout can be hit or miss. Here’s a pretty foolproof no-recipe option that allows you to use up leftovers and is sure to please more people than not. Who doesn’t like a one-pot dish covered in bubbly browned cheese and breadcrumbs?

The No-Recipe Casserole

1. Saute aromatics.

Heat the oven to 375 degrees. Cook aromatics like onions, leeks, shallots, garlic, ginger, or chiles in a few tablespoons of oil or butter over medium heat until softened and fragrant. A large ovenproof skillet is best, so you can build the casserole right in the pan.

2. Vary the flavors.

Stir spices or other seasonings into the aromatics to give the casserole its…