Blanche cabbage leaves in boiling water, peeling them off as they become limp.
Once you’ve separated all the leaves, take a paring knife and cut off any thick stems preventing the limp leaf from bending/rolling.
Prepare rice according to the instructions on package and let cool.
Dice the onion, or cut into cubes and fry in a pan with 2 tablespoons of oil. Peel an wash the mushrooms then cut into cubes. Once the onion becomes translucent add the cut up mushrooms and fry until water from the mushrooms has evaporated.
In a large bowl combine meat, cooled rice, cooled fry onions with mushrooms mixture, salt and pepper to taste. Mix all ingredients well.
Place about 2 tbsp of meat filling in the center of each leaf. Fold the sides of the leaf in and roll it up into a little package.
Mix tomato paste with the milk until smooth.
Layer the bottom of the pan with half of the the tomato sauce. Place rolled up gołąbki seam down in the sauce and place another layer of tomato sauce on top.
When all the stuffed cabbage leaves are done – there are at least 1 and ½ layers depending on the size of the pan you use. Cover with a few cabbage leaves on top to prevent burning. Cover and place into the preheated grill or oven to 350 degrees Fahrenheit and bake for about 2 hours. May eat with potatoes, fresh bread or salad. Enjoy!