2 Cup (32 tbs), prepared according to package directions. (4 Portions, Each 1/2 Cup)
1⁄4 Cup (4 tbs)
Cut oranges in half, making a sawtooth pattern.
Free fruit from shell carefully.
Stir in 2 tablespoons reserved orange juice.
Blend in mashed potatoes.
Fill orange shells with potato mixture, using a pastry tube or spoon.
Top with marshmallows.
Microwave 1 minute on high, or until marshmallows soften.