I just found this. I haven’t tried it. I will, though, and let you know if it’s like the Olive Garden’s. I looove that tiramisu.

Olive Garden Tiramisu Dessert
Serving Size : 6 Preparation Time :0:30

1 Sponge Cake (10-12 Inch) — about 3″ tall
3 Ounces Strong Black Coffee — or instant expresso
3 Ounces Brandy Or Rum
1 1/2 Pounds Cream Cheese Or Mascarpone — room temperature
1 1/2 Cups Superfine/Powdered Sugar
Unsweetened Cocoa Powder

Cut across middle of sponge cake forming two layers, each about 1 1/2
inches high. Blend coffee and brandy. Sprinkle enough of mixture over
bottom half of cake to flavor it strongly. Don’t moisten cake too much
or it may collapse on serving.

Beat room-temperature cheese and 1 cup sugar until sugar is completely
dissolved and cheese is light and spreadable. test for sweetness during
beating, adding more sugar if needed. Spread cut surface of bottom layer
with half of the cheese mixture. Replace second layer and top this with
remaining cheese mixture. Sprinkle top liberally with sifted cocoa.

Refrigerate cake for at least 2 hours before cutting and serving.