1/4 pound bacon, diced
1/2 small head cabbage, chopped
1 large onion, thinly sliced
2 tomatoes, chopped
1 tablespoon vegetable oil
2 teaspoons white wine vinegar
1/2 teaspoon white sugar
1/2 teaspoon salt
1 (16 ounce) package frozen potato and cheese filled pierogies, thawed
Place bacon in a large, deep skillet. Cook over medium high heat until evenly brown. Drain, reserving drippings, and set aside.
Heat bacon drippings over medium heat and stir in cabbage and onion; cover and cook for 10 minutes.
Stir in tomatoes, vegetable oil, vinegar, sugar, salt and bacon; cook uncovered for 5 minutes.
Meanwhile, prepare pierogies according to package directions; drain. Combine pierogies with cabbage mixture and serve.