Just off Piazza Farnese, this unassuming restaurant has maintained a high level of quality in an area chock-full of tourist traps. Monserrato's signature dishes are its fish specials: carpaccio di pesce spada (swordfish carpaccio, served with lemon and arugula), insalatina di seppie (cuttlefish salad), bigoli con gamberi e asparagi (homemade pasta with shrimp and asparagus), and grilled fish are all simply prepared, exalting the flavor of first-rate ingredients. Umbrella-covered tables on the small, adjacent piazza provide a lovely dining experience in nice weather.