When it comes to food, generally I try and go down the path unknown and try something new when dining at a restaurant I have been to a few times. When it comes to Carrabba's through, I stick to my personal favorites:
-Calamari Ricardo (think calamari with herbs and spices and an amazing garlic/butter dipping sauce)
-Spendino di Mare: a lightly breaded and fried combination of scallops and shrimp.
Plus the bread they serve the table is awesome when you dip it in the oil/pesto mix they set on the table for you.