Let the dough sheets rest at room temperature for about 10 minutes. Wash strawberries, except for 3, clean and cut into thin slices. Squeeze the quark well in a clean tea towel. Mix sugar, 1 egg, starch and lime zest with the whisk of the hand mixer. Mix the quark and cottage cheese. Stir the egg mixture into the quark mixture. Melt butter in a pot and let it cool down
Dust a large tea towel with flour, roll out the dough sheets, spread 4 sheets of butter thinly one after the other, place them on top of each other on the towel in such a way that they form a rectangle (approx. 50 x 55 cm) and place another 4 sheets on top of them (wrap the remaining sheets well, put them in a cool place and use them for other purposes as soon as possible)
Spread the quark mixture lengthwise over half of the surface of the dough, leaving an approx. 4 cm wide rim. Spread strawberry slices on top. Fold the edges of the dough over the quark mixture. Roll up from the coated side using a tea towel. Slide the strudel with the seam side down onto a baking tray lined with baking paper
Mix 1 egg with milk. Spread the strudel with egg milk and bake in a preheated oven (electric range: 225 °C/ convection oven: 200 °C/ gas: level 4) for approx. 40 minutes. In between, brush 1-2 more times with remaining butter. Roast the almonds in a pan without fat until golden brown and take them out. Cover the strudel at the end of the baking time if necessary and take it out. Halve the remaining strawberries. Decorate strudel with strawberries and almonds