We discovered Red Tree Catering at One Yellow Rabbit's 2013 Wine Stage. Red Tree had an amazing dessert buffet of carre fours, brownies, macarons and other eye-pleasing and delicious sweet treats.
Their shop in Marda Loop is contemporary and clean with a decent selection of appetizers, salads, entrees and desserts. There is a small yet solid selection of gourmet sauces, spices, teas and dips.
Service is always friendly and helpful. Take-out pricing for Red Tree is somewhere between Sunterra and Mercato. I think Red Tree's beef, spinach & ricotta lasagna is the best in town (it's not heavy and packed full of cheese/ beef which is great!).
I would recommend Red Tree for a special dinner at home... Just be prepared to pay for quality. I'm tempted to try out their catering services in the future based on their consistently tasty take-out.