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Mason Jar Overnight Oats {Meal Prep}
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4.59 from 34 votes

Mason Jar Overnight Oats

Make a week's worth of healthy breakfasts with mason jar overnight oats. They can be easily customized and use nut butter, rolled oats, milk, chia seeds, and fruit.
Prep Time10 minutes
Total Time10 minutes
Course: Breakfast
Keyword: breakfast, healthy breakfast recipe, kid-friendly recipe, make with kids, meal prep, overnight breakfast
Servings: 5 servings
Author: Jess Smith via Inquiring Chef
Cost: $3.00

Equipment

  • 8 ounce or 16 ounce Mason Jars
  • Mixing Bowls

Ingredients

  • 10 tablespoons almond butter (sub any nut butter)
  • 5 teaspoons chia seeds (optional)
  • 2 1/2 cups rolled or old-fashioned oats
  • 2 1/2 cups milk (use any type of milk you like - skim, 2%, almond, oat, coconut, etc.)
  • 10 ounces fruit, fresh or frozen
  • honey (optional)

Instructions

  • Set out five mason jars (I use 8 ounce but they are packed all the way to the top as in the photos; 16 ounce will give you more room to stir and add toppings; or use any other similar-sized container). Fill each jar with almond butter (2 Tablespoons / jar), chia seeds (1 teaspoon / jar), and oats (1/2 cup / jar).
  • Slowly pour milk over top, giving it time to fill in the spaces between the oats. (Note: Be sure that the oats are just barely covered with milk. You may need a little more or less than the amount listed.)
  • Top oats with frozen berries and a drizzle of honey (if using).
  • Put lids on the jars and transfer to the fridge. Refrigerate overnight and up to five days.
  • When you're ready to eat the oats, just pull them out of the fridge and dive in. You can stir everything together or eat the layers one at a time.

Notes

Chia seeds are optional, but they soak up the liquid and add a great texture contrast / layer with a bit of seedy crunch.
Be sure to get rolled or "old-fashioned" oats. Quick cook or instant oats will soften too much if left overnight to soak in liquid.
If you need these to be gluten-free, be sure to choose rolled oats that are certified gluten-free (not all are).
Nutrition information was calculated using skim milk.

Nutrition

Serving: 1jar | Calories: 420kcal | Carbohydrates: 41g | Protein: 17g | Fat: 23g | Saturated Fat: 3g | Polyunsaturated Fat: 6g | Monounsaturated Fat: 12g | Trans Fat: 0.01g | Cholesterol: 6mg | Sodium: 51mg | Potassium: 590mg | Fiber: 9g | Sugar: 8g | Vitamin A: 234IU | Vitamin C: 0.1mg | Calcium: 306mg | Iron: 3mg