Spinach
Fresh baby or mature leaf
Spinach: sauté on medium heat for 2–3 min.
Cooking Methods
Baby spinach is tender, needs zero prep and works raw or cooked. Mature, bunched spinach has thicker stems to strip out but brings deeper flavor and holds up better in the pan. Look for dark, dry, perky leaves and skip any bag with moisture pooling inside, since one slimy leaf spreads fast. Stored dry in an airtight container with a paper towel, baby spinach keeps 5–7 days in the crisper; wash right before cooking, not before storing. For cooking I buy mature bunches every time but baby spinach wins for anything raw.
Spinach is the fastest vegetable in your kitchen: sautéed spinach is done in 2–3 minutes and steamed in 1–2, so the pan is ready before your main course is plated. The thing that always gets you is the shrink: a full pound of fresh spinach cooks down to about a cup, so buy double what looks reasonable. Whether you sauté or steam, the finish move is the same: get the water out because wet spinach is why people think they don't like spinach.