Lentils and chickpeas are very filling. Right now I’m making a paneer tikka masala, but I almost went with chana masala with chickpeas.
Many non European and non north/South American foods are mostly vegetarian/fish based. Korean, Japanese, Vietnamese, Thai, Sri Lankan, Indian, Pakistani, etc. I am Korean and although people usually think of the beef dishes bulgogi and kalbi when they think of Korean food, in my home, those are eaten in small portions and the majority of the meal is made of vegetables, rice, soups, tofu stews, etc.
Since you like tofu, experiment and see if you can get your family to enjoy it in a new preparation. Tofu is so versatile that it would make your life a lot easier if you could win everyone over. We eat a lot of tofu, but I haven’t tried any of the newer recipes that have been developed especially for people new to tofu, so perhaps someone here can suggest some.
You can also try types of “pancakes” that are made from flour or lentils that exist in many cuisines. In Japanese, one version is okonomiyaki, in Korean it’s pajun and bindaeduk(mung bean pancake), in South Indian it’s dosa, in Chinese it’s Jianbing, in Nepal it’s a type of lentil pancake, in North Indian it’s chilla. Usually you put veggies and maybe egg inside. Bindaeduk is made from ground mung bean and then you can really put whatever you want inside and saute them.
https://www.maangchi.com/recipe/bindaetteok