Is this ok to eat in a day to lose weight?

For breakfast 3 cruskits with cheese and pickles( I used 2 medium sized pickles and 2 light cheese slices). For snacks I had 3 pickles(medium size). I had a small chocolate yogurt which I know I shouldn't of had, but it was small and I was craving it badly. And for lunch I will be having vegetables( broccoli, 3 carrots, 1 onion, 200g of mushrooms, and I will add salt and a teaspoon of margarine to it.