I like houmous sandwiches. Either just bread and houmous or with avocado, lettice and tomato. Also if you don't like cooking from scratch, I like to buy ready to eact quinoa and then I just chop avocado, tomato, cucumber, spring onion in it or cucumber, tinned fish and spring onion and nice lunch taken care of.
Also at work I get this salad in a wrap and it is basically houmous, tomatoes, coriander, rocket, thin sliced carrot and toasted pumpkin seeds, plus spring onion, flat bread wrap and japanese weed (kombu) which I think could be substituted by marmite. It is nice and popular. Kids like lentils so rice or potatoes with them are popular. Also pizza without cheese is good, and can get takeaway.
I was wary of coconut and turned out to be right - M has alergy to it and to chickpeas. So I can eat houmous and some coconut curries becasue he seems to tolerate it that way but I stopped giving houmous or chickpeas to him and don't give him anything with coconut. His allergy to egg is stronger so there I have to exclude it as well and the allergy specialist said that I need to give each eliminated ingredient about 2-6 weeks to really show results. Same for adding back in. At the moment M has mild allergy to dairy and soy but 6 months ago it was high. Apparently up to 90% outgrow dairy allergy by 3 y.o. (75% by 2), so there is hope yet.
Our specialist told us that there is a link between dairy, soy and egg allergies and they tend to be together. Our symptoms were itchy eczema rash, vomittinig or constipation or both and respiratory ( sniffly nose). It took a while to click as so many other alergens, but actually just eliminating the main culprits was enough in our case. best of luck!