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–+ servings

Slow Cooker Caramelized Onions Pasta

This Slow Cooker Caramelized Onions Pasta is a savory, slow-cooked comfort dish that highlights the natural sweetness of onions. Paired with pasta and simple seasonings, it's rich in flavor yet simple to prepare. Perfect for busy weeknights or when you want a hands-off, satisfying meal.
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Prep Time 10 minutes
Cook Time 6 hours
Total Time 6 hours 10 minutes
Course Comfort Food, Main Course, Pasta Dishes, Slow Cooker Meals, Vegetarian
Cuisine American
Servings 4
Calories 410 kcal

Ingredients
  

  • 4 cups yellow onions thinly sliced
  • 2 tbsp olive oil
  • 1 tbsp balsamic vinegar
  • 1 tsp salt adjust to taste
  • 1/2 tsp black pepper freshly ground
  • 12 oz pasta such as spaghetti or linguine
  • 1/2 cup parmesan cheese grated, optional
  • 2 tbsp fresh parsley chopped, optional for garnish

Instructions
 

  • Add sliced onions, olive oil, balsamic vinegar, salt, and pepper to the slow cooker. Stir to coat evenly.
  • Cover and cook on low for 6–8 hours, or until onions are deeply caramelized and golden brown.
  • Near the end of cooking, boil pasta according to package instructions. Drain and reserve 1/2 cup pasta water.
  • Toss cooked pasta with the caramelized onions. Add reserved pasta water a little at a time to loosen the sauce.
  • Serve hot, topped with grated parmesan and chopped parsley if desired.

Notes

Try adding sautéed mushrooms or spinach to the mix for extra flavor and texture.

Nutrition

Calories: 410kcal
Keyword caramelized onions, easy dinner, Meal Prep, slow cooker, vegetarian pasta
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