Poke holes approx ½ inch apart in the baked cake.Puree the strawberries and ¼ cup sugar. Pour into a microwave safe bowl and heat for 60-90 seconds or until it starts to bubble. Add the remaining sugar to taste, if desired. Pour the sauce over the cake and spread it so that it soaks down into the holes.Whip the whipped topping mix according to the package directions.Whisk the instant pudding mix with 1½ cups dairy-free milk. Fold the whipped cream carefully into the pudding and spread it over the cake.Slice fresh strawberries to garnish the cake.