Cut the mushrooms and 1 onion and fry. Separately from the mushrooms, fry the ground beef and 1 onion. Sprinkle with salt and pepper. Connect together.
Grate the zucchini and sprinkle with salt so that the excess liquid comes out. Click. I took the frozen zucchini out of it during defrosting and moisture removal. Add eggs, flour, a little pepper, a little salt. Beat with a mixer.
Preheat the oven to 200*. Cover the form (large and rectangular) with baking paper, lightly lubricate with vegetable oil. Pour out and smooth the pumpkin puree. Bake for 20 minutes.
Put minced meat with mushrooms on the baked base, grated cheese on top.
Roll into a roll and place in the oven for 10 minutes at a temperature of 180 *.