"My daughter eats pasta."
Translation:Meine Tochter isst Nudeln.
As far as i understand, meine is used for plural and feminine whereas mein is used for masculine and nueter. So in this case since we are referring to die Tochter we use the feminine meine
Nudeln is a better translation of pasta. "Teigwaren" roughly translates to "dough/wheat products" and is less common in conversation. This might be one of those times to ignore the aggregate online dictionary ;)
Isst goes for: Du, Er, Sie and Es. Essen goes for: Wir, Sie. You see? The person indicates you which is the correct ending for the verbs.