Is it a good or bad idea to feed our pitbull separately? (see details)

3 dogs:
1 female pitbull
1 male chihuahua/minpin
1 male pomeranian
all 3 sterilized

I feed the dogs about a foot apart from each other but side by side and in a year have never seen the pit snarl at the chi-pin over food. This morning after the food was gone from their bowls then the chi-pin walked by the pit and she grabbed him by the head, flipped him over on his back and started biting his face and chest before I broke it up and got her to let him go. He didn’t get punctured anywhere but did get a cut over one of his eyes which could have just as easily been his eye. Anyhow.

I’m thinking of feeding the pit in the garage from now on in the hopes she won’t feel any pressure, intimidation (she’s not the dominant, the chi-pin is) or nervousness related to feeding time. Do you think this will work or do you think I’ll cause more problems by separation? I’m really afraid she will do this again and maybe to the pom’ too. I know she’s not intended to maul otherwise they’d both be goners but she is so much more powerful and hurts them out of sheer bite strength.