Spinach Salad 

Source: Alicia's Country Recipe Kitchen

1 package (3 oz) Jello Lemon, Lemon-Lime, or Lime Gelatin
1/2 teaspoon salt
1 cups boiling water
1/2 cup cold water
3 tablespoons vinegar
1-1/2 cups chopped cooked spinach
2 teaspoon grated onion. 

Dissolve Jello Gelatin and salt in boiling water. Add cold water and vinegar. Chill until very thick. Fold in spinach and onion. Pour into a 1-quart mold or individual molds. Chill until firm. Unmold on crisp lettuce. Garnish with mayonnaise and sliced hard-cooked egg, if desired. Makes about 3 cups, or 6 side salads.