The sheet-pan dinner is the closest thing to a free meal in modern cooking: everything on one tray, one oven, one wash-up. The method never changes — protein in the middle, vegetables around it, a starch in the corners, all of it oiled and seasoned, forty minutes at a high heat. The rest is variation.
Week one: chicken thighs with potatoes and green beans. Week two: sausages with peppers and onions over crusty bread. Week three: salmon with asparagus and lemon. Week four: pork chops with apples and fennel. Same tray, same timing, different dinners — the rotation is the recipe.
Two refinements separate good sheet-pan cooks from the rest. Cut everything to a similar size so it finishes together, and do not crowd the tray — air needs room to move, or you get steaming instead of roasting. Master the basic tray, and you will never need to plan another weeknight dinner again.