Hi Mrsjaffa13
Okay, well firstly you’ve done well so far, 12lb in 2 weeks is a great result. However, if your surgery was recent and you are still technically recovering, you should probably be kind to yourself and not try to do the 800cals per day immediately. If this is the case, maybe in the short term, rather than trying to follow the 800 cals a day, how about just keeping an eye on your carb in take, keeping it around 50g per day and eat plenty of protein rich foods, good fats and fresh veggies. The protein and fat will help you to feel fuller longer. By keeping carbs low, you will probably lose some weight anyway.
As for lunch ideas, take a peek at the ‘what have you eaten today?’ thread, where people post what they have been indulging in. Meanwhile a few ideas are, omelette (can have with various fillings), gem lettuce leafs with various toppings – cheese, smoked salmon, cold meats etc, coconut flour pancakes with toppings – could be savour with cheese or meat, or sweet with fruit and yogurt, but there are lots more ideas on the thread. Always use full fat yogurt by the way and be sure to weigh/measure everything
Good luck with it and let us know how you get on.