Most clinics include the first week (some give more) of food, and purposely give a set variety of packets so that you can try different things.
Everyone's tastes are different, so it's hard to give universal suggestions for packets. What I love, someone else may think is vile, and vice versa
One thing to remember is that you only get ONE restricted item per day, so make sure that for every one restricted item you choose two unrestricted items. Restricted items are higher in carbs and will be noted on your Phase 1 protocol sheet so you know what they are.