In a large saute pan, heat 2 Tablespoons olive oil over low-medium heat. Caramelize onions for about 15 minutes, stirring occasionally, then add yellow peppers and garlic and cook another 2-3 minutes until fragrant.
Add zucchini and squash and saute together for 6-8 minutes until they begin to soften.
Layer the frozen pierogies on top of the vegetables in a single layer, cover, and cook over medium heat for 5 minutes, stirring halfway through.
Add the kielbasa, grape tomatoes, and corn. Season everything with salt and black pepper, and continue to cook, covered, for an additional 5-8 minutes until everything is cooked through, being sure to stir occasionally.
While everything is cooking, combine 1 Tablespoon olive oil, 2 Tablespoons apple cider vinegar, 2 Tablespoons Dijon mustard, and 1 teaspoon of garlic in a small bowl, whisking to incorporate.
Drizzle Dijon vinaigrette over finished dish and toss to coat. Serve and enjoy your quick, easy meal!
Amount Per Serving
Calories541kcalCalories from fat 349
% Daily Value
Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs: