1. Make the Sponge Cake for Chocolate-Covered Strawberry Swiss Roll Cake:

1. Preheat the Oven: Preheat your oven to 350°F (175°C). Line a 10×15-inch jelly roll pan with parchment paper and lightly grease the paper to prevent sticking.
2. Beat the Eggs: In a mixing bowl, beat the eggs with an electric mixer on high speed for about 3-4 minutes until they are pale and fluffy.
3. Add Sugar and Vanilla: Gradually add the granulated sugar and vanilla extract, beating for another 2 minutes until the mixture is thick and glossy.
4. Sift the Dry Ingredients: In a separate bowl, sift together the flour, baking powder, and salt. Gently fold the dry ingredients into the egg mixture with a spatula, being careful not to deflate the batter.
5. Pour and Bake: Pour the batter into the prepared jelly roll pan, spreading it evenly with a spatula. Bake in the preheated oven for 12-15 minutes, or until the cake is golden brown and a toothpick inserted into the center comes out clean.
6. Cool the Cake: Once baked, remove the cake from the oven and immediately turn it out onto a clean kitchen towel dusted with powdered sugar. Carefully peel off the parchment paper and roll the cake up with the towel. Allow it to cool completely while rolled.

2. Prepare the Strawberry Filling for Chocolate-Covered Strawberry Swiss Roll Cake:

1. Cook the Strawberries: In a small saucepan, combine the chopped strawberries, sugar, and lemon juice. Heat over medium heat, stirring occasionally, until the strawberries release their juices and become soft (about 5-7 minutes). Remove from heat and set aside to cool.
2. Whip the Cream: In a separate mixing bowl, beat the heavy cream, powdered sugar, and vanilla extract with an electric mixer until stiff peaks form.
3. Combine the Filling: Once the strawberry mixture has cooled, gently fold the whipped cream into the strawberries. Be careful not to deflate the whipped cream.

3. Prepare the Chocolate Ganache for Chocolate-Covered Strawberry Swiss Roll Cake:

1. Heat the Cream: In a small saucepan, heat the heavy cream over medium heat until it just begins to simmer.
2. Make the Ganache: Pour the hot cream over the chopped chocolate and let it sit for a minute to melt. Stir until smooth and glossy, then add the butter and vanilla extract. Mix until the butter is fully incorporated and the ganache is silky smooth. Allow it to cool slightly before using.

4. Assemble the Chocolate-Covered Strawberry Swiss Roll Cake:

1. Unroll the Cake: Once the sponge cake has cooled, gently unroll it from the towel. Be careful not to tear the cake.
2. Spread the Strawberry Filling: Spread a generous layer of the strawberry filling over the entire surface of the cake, leaving a small border around the edges.
3. Roll the Cake: Carefully roll the cake back up, starting from one of the short ends. Don’t roll too tightly, as the cake may crack.
4. Coat with Ganache: Place the rolled cake seam-side down on a serving platter. Pour the slightly cooled chocolate ganache over the top of the cake, spreading it evenly with a spatula to cover the entire surface.
5. Chill the Cake: Refrigerate the cake for at least 30 minutes to allow the ganache to set.

5. Cut and Serve the Chocolate-Covered Strawberry Swiss Roll Cake:

1. Slice and Serve: Once the ganache is set, slice the cake into generous pieces and serve. Enjoy the light and flavorful cake, with its combination of rich chocolate and sweet strawberries.