Marino Ristorante seems somehow out of place – a little bit of a non-sequitur in its unassuming Mass Ave. spot. But those in-the-know are often more than willing to brave long waits (due to a no reservation policy for parties under six) for chef Luigi Marra’s cooking. A big believer in all natural foods, Marra has found his match at Marino, where most ingredients come from the restaurant’s sister business, Marino Lookout Farms in South Natick. Take a peek at what’s on the menu this summer.