1 (10 ounce) package instant French baguette dough
1/2 cup lemon juice
1 tablespoon prepared horseradish
1 tablespoon prepared mustard
1 cup chopped onion
1 cup chopped celery
4 tablespoons prepared horseradish
1 cup chopped green bell pepper
1 pound shredded Cheddar cheese
Preheat oven to 350 degrees F (175 degrees C). Line a 9x13 inch baking dish with aluminum foil.
Slice each puff pastry into 12 wedges. Make small slits in the middle, and fill with lemon juice, horseradish, mustard, onion, celery, horseradish mixture and bell pepper. Place this mixture in prepared baking dish.
Bake at 350 degrees F (175 degrees C) for 35 minutes. Bake 15 minutes longer, uncovering edges. Cool before storing in refrigerator.