A clean, light pasta that leans on the pan: olive oil bloomed with sliced garlic and chili, shrimp seared just to pink, then everything tossed with spaghetti, lemon, and a fistful of parsley. The sauce is starchy pasta water emulsified with the oil — no cream, no shortcuts, no excuses.
The whole dish lives or dies by two small things: the garlic and the pasta water. Slice the garlic thin so it cooks evenly, and keep the heat low until it's a pale gold — golden garlic is sweet, brown garlic is acrid. The pasta water is your sauce; drain into a measuring cup if you have to, but never pour it down the sink before you've reserved some.
If your shrimp are frozen, thaw them in a bowl of cold water for 10 minutes, then dry them very thoroughly. Skipping the drying is the single most common reason home-cooked shrimp turn out grey and soft instead of pink and seared.