Preheat oven to 400°F (205°C).

Mix yeast and hot water in small bowl; let stand 5 minutes.

Combine flour, oats, 1¾ teaspoons Equal® for Recipes, baking powder, baking soda, and salt in medium bowl; cut in margarine with pastry blender until mixture resembles coarse crumbs.

Stir buttermilk and yeast mixture into flour mixture, making a moderately stiff dough. Knead dough on lightly floured surface 3 to 4 times.

Let dough rise, covered, in warm place until almost doubled in size, 15 to 20 minutes.

Punch dough down. Roll dough on lightly floured surface to 1/2″ thickness; cut into hearts or other shapes with 3-inch cutter.

Bake on greased cookie sheet in oven for 20 minutes or until biscuits are browned.

Sprinkle strawberries with 1½ teaspoons Equal® for Recipes.

Split warm biscuits and place on plates. Spoon strawberries over. Garnish with dollops of whipped topping and mint sprigs.