For the first 2 weeks stay on liquid diet.You need 2 quarts of liquid daily to avoid dehydration.sipping slowly is best.Do not try to gulp large amounts,You will vomit.Any low carbohydrate liquids are ok.non dairy based soups are great.
The third week,start pureed food.cream of wheat,oatmeal,and thin mashed potatoes.The types of food you would feed a 5-6 mth old infant.Small amounts of about 1-2 tablespoons will be enough for now.
After the first 3 weeks,you should be able to start a solid diet.add eggs and meat to the diet plan.start slowly and eat very small amounts.Cut your food into tiny pieces.Avoid fibrous foods .watch out for seeds.chew thoroughly before swallowing.The new opening into your intestine is very small and only well chewed food will pass without problems.
If you do not have tolerance to your solid food, go back to liquids for a day or two and try again.Patience is required.
Family members may think you are not getting enough to eat and tempt or urge you to eat more.Resist this.If you are 100 lbs overweight you have enough extra calories in store to support you for few months.