I work ft. In my house, there is adults' food and there is children's food. I know the received wisdom is not to give the children a choice, but they don't know mine and life's too short to have food standoffs.
I probably won't try too hard with the 7 month old. Finger foods when she is older or BLW if you want a fancier title.
If you are working and your dcs are in childcare/school and eating well at lunch, I would not really bother that much for dinner. When they were younger, I have just given them sandwiches, even cereal, or some cheese or ham for dinner, just to pretend it is a meal.
As they grow up, they get a lot less fussy about food. Dd 7 is almost finishing her dinner now. It could just be plain rice and grilled chicken or chicken nuggets. Or fish fingers and cheese on potatoes. If I am making pasta, I make a cut down version of the sauce (taking out vegetables, herbs and things I know they won't eat) and mix with plain pasta. Or a plain omelette with cheese. Easy to make whilst you are making the adults' meal.
Even if they did not eat it, I'd be fine because it did not take any effort to make and were very small portions.