Giraffe, you need to try to eat carbs basically with every meal, but just not too much.
If I can give you my "sample" daily menu, that might help?
Breakfast - bran flakes (look for ones with 5% sugar or less) with a handful of nuts and sunflower and linseeds. Skim milk.
(some people have had problems with cereal but it's been fine for me).
snack - pear or an apple.
Lunch - hummus and cheese sandwich, or chicken sandwich on wholegrain bread. Plus big salad.
Snack - low sugar natural yogurt (not lumpy!) with berries.
Dinner - chilli with rice, casserole, fish with veg and pots, steak with chips and veg, home made curry with rice, shepherd's pie, omelette with salad and pots, small portion of pasta with salad, chops, roast dinner etc.
Followed by an apple and a bar of sugar free chocolate.
Then sometimes I have another yogurt in the evening or a slice of bread and cheese. Depends what time I have dinner.
I appreciate it's difficult if you can't eat nuts and seeds - bread will be a challenge. You could substitute crackers for bread at lunch and maybe add fruit to the cereal instead of nuts.
At first I really cut out carbs but weight fell off and I got told off .