Heat olive oil in a large skillet. Add onions, garlic, carrots, and celery. Saut until the onions are soft, approximately 5 7 minutes.
Place a large pot of water on to boil.
Leave half of the vegetable mixture in the pan and transfer the other half to a large bowl.
Add the diced tomatoes, sugar and vinegar to the skillet. Simmer on low for 10 minutes.
Add the ground turkey, rice, pepper, salt, and egg to the bowl, Mix well.
Remove enough leaves to make 16 cabbage rolls. Cut the denser ribbing from the bottom of the leaf. If you dont have enough large leaves you can use to smaller leaves. Place 3 4 cabbage leave in the pot of boiling water for 1-2 minutes to soften them. Remove with tongs, place the leaves in a bowl of cold water to cool. Then move the leaves to a towel or colander to dry. Repeat the process for the rest of the leaves. My Blanching System
Place a portion of the meat mixture in the center of a leaf.
Roll up bottom, then fold over one side, then fold the top down, then roll to close. Place in a greased baking dish with the seam-side down. Repeat until all of the cabbage rolls have been made.
Spoon the tomato mixture over the cabbage rolls.
Cover with foil and bake at 375 degrees for 45 minutes. Remove foil and bake for 10 more minutes.
I serve cabbage rolls with rice and use the leftover cabbage to make Sauted Cabbage and Carrots.
Heat oil in large skillet. Add cabbage, carrots, garlic powder and pepper. Cook over a medium-high heat, tossing occasionally, until the cabbage just begins to wilt, approximately 7 10 minutes.