Baked Oatmeal Raisin Cookie Casserole Recipe

Here’s a baked oatmeal recipe with the delicious taste of oatmeal cookies. It’s high in fiber, vegan, dairy-free, and gluten-free. Plus, it’s convenient—make a batch to enjoy it warm with a splash of milk or cold as a convenient grab-and-go option. Either way, it’s a nutritious and satisfying way to start your day or enjoy as a snack.

Baked Oatmeal Served in Le Creuset

Scrolling through my news feed on Christmas Eve, a baked oatmeal recipe caught my eye. It sounded interesting and super convenient since it could be enjoyed warm or cold as a quick bite. I needed something for breakfast the next day, so I decided to make one.

I thought I could get something like oatmeal cookies by using the spice mix from my Low-Fat Granola, along with raisins and walnuts. It was quick and easy to prepare, and the aroma while it baked was amazing. I was tired and not hungry, so I put it away and settle in for a long winters nap.

I woke up early on Christmas day and hurried down stairs like a kid, excited to try my new oatmeal. It was a great way to start the day, convenient, warm, comforting and really satisfy. I’m glad that Santa didn’t find them before I got to taste them. Later, when my kids and grandkids tried it, they all loved it too. They can be a picky bunch, so I knew I had stumbled upon something special.

Ingredients

Baked Oatmeal ingredients
  • Rolled Oats: an excellent source of soluble fiber, particularly beta-glucan, vitamins and minerals (manganese, phosphorus, magnesium, iron, and zinc). Additionally, oats feed beneficial gut bacteria, promoting a healthy gut microbiome.
  • Walnuts: rich in healthy omega-3 fatty acids (specifically alpha-linolenic acid or ALA), minerals (copper, manganese, and magnesium), and antioxidants that protect cells from damage caused by free radicals.  
  • Flaxseed: excellent source of omega-3 Fatty Acids and ALA, lignans — plant compounds that have antioxidant and potential cancer-fighting properties, soluble and insoluble fiber.
  • Almond Milk: vitamin E, monounsaturated fats, low in carbohydrates.
  • Avocado Oil: rich in monounsaturated fatty acids, particularly oleic acid, vitamin E and other antioxidants.
  • Raw Date Paste: high in fiber, vitamin B6, potassium, magnesium, polyphenols, carotenoids, flavonoids, calcium, magnesium, and phosphorus, and natural sweetness with low glycemic index.
  • Raisins: fiber, minerals (iron and potassium), and antioxidants like phenols and polyphenols. 
  • Spices (Cinnamon, Nutmeg, Ginger): compounds with antioxidant and anti-inflammatory effects.

Easy to Make

Mix the liquid ingredients and spices is a mixing bowl.

Mixing baked oatmeal liquids

Add the dry ingredients.

Mixing baked oatmeal

Bake in a baking dish.

Baked Oatmeal ready to bake

Baked Oatmeal Cookie Casserole

This baked oatmeal recipe has the great taste of oatmeal cookies. It's high in fiber and nutrients, vegan, dairy-free, and gluten-free. Plus, it's convenient—make a batch to enjoy it warm with a splash of milk or cold as a convenient grab-and-go option. Either way, it's a nutritious and satisfying way to start your day or enjoy as a snack.
Prep Time15 minutes
Cook Time40 minutes
Total Time55 minutes
Course: Breakfast, Snack
Cuisine: American
Keyword: Nuts, Whole Grain
Servings: 4 people
Calories: 285kcal

Equipment

  • 1 mixing bowl
  • 1 5×5" baking pan

Ingredients

  • cup whole rolled oats
  • ¼ cup chopped walnuts
  • ¼ cup raisins
  • 1 tablespoon flax seeds
  • ¾ teaspoon baking powder
  • 1 teaspoon cinnamon
  • ¼ teaspoon nutmeg
  • ¼ tsp ginger
  • ½ teaspoon vanilla
  • ¼ teaspoon sea salt
  • cup unsweetened almond milk
  • 1 tablespoon avocado oil
  • ¼ cup raw date paste

Instructions

Preheat Oven

  • Preheat oven to 350℉.

Make Date Paste

  • Bring ¼ cup chopped dates and ¼ cup water to boil and simmer until the dates are soft, about 5 minutes.
  • Puree in food processor.

Mix Liquids and Spices

  • In a large mixing bowl, combine 1¼ cup unsweetened almond milk, 1 tablespoon avocado oil, ½ teaspoon vanilla, 1 teaspoon cinnamon, ¼ teaspoon nutmeg, ¼ tsp ginger, ¼ teaspoon sea salt, and ¼ cup raw date paste.
    Baked Oatmeal ingredients
  • Grind 1 tablespoon flax seeds, and add them to the mixing bowl.
    Mixing baked oatmeal liquids

Add Dry Ingredients

  • Add 1¼ cup whole rolled oats, ¼ cup chopped walnuts, ¼ cup raisins, and ¾ teaspoon baking powder to the mixing bowl and stir well.
    Mixing baked oatmeal

Bake

  • Lightly oil 5×5 baking dish, or 4 mini Le Creusets.
  • Pour the oatmeal batter into baking dish.
    Baked Oatmeal ready to bake
  • Bake for 40 minutes.
    Oatmeal baked Le Creuset

Notes

Store the leftovers tightly covered in refrigerator.
Leftovers can be eaten cold, or heated in microwave with or without milk.

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