Step 1: Dissolve the Jello
In a large mixing bowl, pour the lime Jello powder.
Add 2 cups of boiling water and stir until completely dissolved (about 2 minutes).
Step 2: Cool and Add Cold Water
Stir in 1 cup of cold water.
Let the mixture sit at room temperature for about 10-15 minutes to cool slightly before adding other ingredients.
Step 3: Mix in the Good Stuff
Gently fold in the cottage cheese and drained crushed pineapple.
If using, add the Cool Whip for extra fluffiness.
Stir in chopped walnuts if desired, reserving a few for garnish.
Step 4: Chill and Set
Pour the mixture into a serving bowl or individual cups.
Cover and refrigerate for at least 4 hours, or until fully set.
Before serving, garnish with extra walnuts or a dollop of Cool Whip if you like.