Tuna Burger question

[SharonOhio]

I have a recipe from some unknown source that I have made many times which calls for tuna, basil, dijon mustard, horseradish and salt and pepper. The recipe did not specify which type of horseradish and in the past I have used grated fresh but the receipe only calls for 2 TBSP and I hate having to waste the rest of the horseradish. Thoughts on whether I can substitute prepared horseradish and if so how?

Thanks

[Oh Robin]

Use the leftover horseradish to make cocktail sauce. Or use chinese mustard instead of horseradish.