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Savory garlic Parmesan overnight oats with sautéed mushrooms and spinach in a jar

Savory garlic Parmesan overnight oats: How to Create Healthy Bowls


  • Author: Karen Colman
  • Total Time: 6 hours 20 minutes
  • Yield: 2 servings 1x
  • Diet: Vegetarian

Description

A creamy, savory breakfast made by soaking steel-cut oats in milk and stock overnight, then mixing in garlic, Greek yogurt, and Parmesan. Topped with sautéed mushrooms and spinach for a delicious, protein-packed meal ready when you wake.


Ingredients

Scale
  • 1 cup steel-cut oats, rinsed

  • 1 cup whole milk (or oat milk)

  • ½ cup low-sodium chicken stock (or vegetable stock)

  • ½ cup Greek yogurt, room temperature

  • ½ cup grated Parmesan cheese

  • 2 cloves garlic, minced (let rest 5 minutes after chopping)

  • ½ tsp onion powder

  • 1 tbsp unsalted butter, melted

  • ½ cup sliced mushrooms (cremini or button)

  • 1 cup baby spinach, roughly chopped

  • 1 tbsp olive oil

  • ¼ cup diced tomatoes (optional, for brightness)

  • ¼ tsp chili powder (optional, for subtle warmth)

  • ¼ tsp freshly ground black pepper

  • ½ tsp salt, plus extra to taste

  • 2 tbsp chopped fresh chives for garnish


Instructions

  • Soak the Oats:

    • In a medium mixing bowl, combine rinsed steel-cut oats, milk, and chicken stock.

    • Stir in minced garlic, onion powder, and ½ tsp salt until fully mixed.

    • Cover with plastic wrap or a lid and refrigerate for at least 6 hours or overnight.

  • Sauté Vegetables:

    • About 10 minutes before serving, heat 1 tbsp olive oil in a skillet over medium heat.

    • Add sliced mushrooms, season with a pinch of salt and pepper, and cook for about 4 minutes until tender.

    • Add chopped spinach and cook an additional 1 minute until wilted. Transfer to a bowl and keep warm.

  • Blend in Yogurt & Cheese:

    • Remove the soaked oats from the refrigerator and let them sit at room temperature for 5 minutes.

    • In each serving container, stir in Greek yogurt, melted butter, and grated Parmesan.

    • Add ¼ tsp chili powder if desired. Mix until Parmesan melts into creamy ribbons.

    • Taste and adjust seasoning with salt and pepper.

  • Assemble & Briefly Chill:

    • Spoon half of the sautéed mushrooms and spinach atop each portion of oats.

    • If using diced tomatoes, scatter them over the top.

    • Cover again and return to the refrigerator for 10 minutes to let flavors meld while keeping vegetables vibrant.

 

  • Garnish & Serve:

    • Remove containers from the fridge and let stand for 2–3 minutes at room temperature.

    • Top each bowl with chopped fresh chives and an extra dusting of Parmesan.

    • For extra richness, crack a soft-boiled or poached egg over the top and let its yolk drizzle into the oats. Serve warm.

Notes

Rinse Oats: Rinsing steel-cut oats under cold water before soaking removes excess starch and ensures a cleaner flavor.

Rest Garlic: Let minced garlic rest 5 minutes after chopping to mellow its sharpness and create a buttery aroma.

Warm Liquids: Gently warm milk and stock in a small saucepan before pouring over the oats for quicker absorption and creamier texture.

Mushroom Texture: Avoid overcooking mushrooms; cook just until they release moisture and are tender but still hold shape.

Parmesan Choice: Use freshly grated Parmesan rather than pre-grated—fresh cheese melts more smoothly and tastes nuttier.

Adjust Thickness: If oats become too thick, stir in a splash of warm milk or stock to reach your desired consistency.

Vegan Swap: Replace Greek yogurt with unsweetened soy yogurt and Parmesan with 2 tbsp nutritional yeast plus ¼ tsp salt.

  • Prep Time: 15 minutes
  • Cook Time: 5 minutes (for sautéing mushrooms & spinach)
  • Category: Breakfast
  • Method: Soaking, Refrigeration, Sautéing
  • Cuisine: Mediterranean-Fusion

Nutrition

  • Serving Size: 1 bowl (≈ 1 ¼ cups)
  • Calories: 390 kcal
  • Sugar: 5 g
  • Sodium: 480 mg
  • Fat: 22 g
  • Saturated Fat: 10 g
  • Unsaturated Fat: 11 g
  • Trans Fat: 0 g
  • Carbohydrates: 32 g
  • Fiber: 5 g
  • Protein: 19 g
  • Cholesterol: 45 mg

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