Dropdown To Give Value To ANY Cell

Excel 2003

Lets see if I can even explain what I want to do.

will have a date column

Will have a total calorie column (this will be a sum of several column containing individual foods)

On a separate worksheet (food sheet) will be a list of foods in one column and their calories (per serving) In the next column.

On the first sheet I want a drop down that lists all the foods on the "food sheet). selecting from this drop down will use a vlookup (or hlookup - depending) to arrive at a caloric value.

So here is (are) the problems. (and the solutions need to be NON-VBA)

1. How do I tie the drop down selection to a vlookup (macro maybe)

2. How do I use that one drop down to populate any cell on sheet one?

can this be done without coding?

This will be an exercise for an excel class to teach vlookups, linked sheets,
making a dropdown, using a macro, formulas, IF statements............

The class is probably not ready for VBA which is why this needs to be a non-coded solution.

I am open to other solutions (related topic) that can bring together all of the above learning concepts