I've always got meatloaf mix in the freezer. I don't shape it until it's thawed, that way I can chose what size I want to do that day. I haven't noticed any difference in taste between frozen/thawed mix and freshly mixed.
The freezing won't affect the taste,unless its in too long, freezerburn. Where you might notice a difference is the moisture content. Freezing and thawing causes moisture to be lost from the meat,but if you are putting a sauce of some kind inside or on top of your loaf ? It'll probably not matter much. So freeze on! just not too long.
steve - you shouldn't ahve any troubles at all - burger gets plenty of moisture and any kind of sauce at all will of course keep things even juicier. the only thing to be careful of is of course freezer burn!
now, if you are talking about freezing meatloaf with any types of stuffing (similar to making a fatty, then of course some foods don't freeze/thaw and cook well. RIVET can name several, but the ones that pop into my head are potato, mushrooms and i think tomatoes.
Amen Ron. A company I worked for 8 yrs ago went out of business with no notice to the employees. One of my co-workers shrugged his shoulders and said "One door closes, and another door opens." It led to a path where he and I work together again, with much better pay and benefits. Glad to see it held true for you too.