I do sympathise, NEEDCOFFEE! The following used to be a typical scenario in my house at teatime, around 5 years ago. (My dc's are no trouble now at mealtimes so you just need to think it WILL pass)!
My eldest would refuse to eat whatever I put in front of her and would have to be bribed with her favourite video afterwards etc, at one time I even resorted to a square of chocolate later for each vegetable she ate! She didn't throw tantrums, she was just extremely stubborn which was infuriating!
Her younger brother would just scream through every meal, putting his sister off her food once I'd finally got her to eat, and it wasn't unusual for his bowl of food to go shooting across the table making an almighty mess when it landed on the floor!
My dh would normally arrive home as this was all going on, and moan at me about all the chaos, disappear upstairs/to the garden with no offer of help at all, (I knew he'd been at work all day but at that time of the evening an extra pair of hands would have been good!)
After getting them to eat maybe a few mouthfuls, clearing up and then getting two overwrought children to bed I was exhausted myself! One evening I just shouted at everybody, "Can somebody tell me what I'm doing WRONG!"
We as a couple really enjoy our food, I always did as a child too. I think some children seem to just be programmed not to. The thing is to keep persevering and try not to appear bothered if they don't eat, easier said than done I know!!