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Fruit Crisp Frozen Fruit Oats

Featured in: Sweet Smile

This comforting dish combines sweet frozen fruit with a golden oat topping made from rolled oats, brown sugar, and butter. Simply toss the fruit with sugar, flour, lemon juice, and cinnamon before spreading it in a baking dish. The oat mixture, with a hint of cinnamon and salt, is poured on top and baked until bubbly and golden. This budget-friendly dessert is quick to prepare and can be enjoyed warm or cold.

Frozen berries, peaches, or apples work well, and adding nuts can enhance the texture. For special diets, substitutions like plant-based butter or gluten-free oats can be used. Serve as is, or with yogurt or ice cream for extra indulgence.

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Updated on Wed, 19 Nov 2025 09:33:00 GMT
Warm, bubbly fruit crisp with golden oat topping, featuring a generous serving of fresh fruit. Save
Warm, bubbly fruit crisp with golden oat topping, featuring a generous serving of fresh fruit. | grinnosh.com

A comforting, budget-friendly dessert featuring sweet frozen fruit and a golden oat topping—perfect for using pantry and freezer staples.

This fruit crisp is my go-to when I want something sweet but don't want to fuss over complicated desserts. The crisp oat topping and juicy fruit filling remind me of weekend afternoons baking with my family.

Ingredients

  • Mixed frozen fruit: 6 cups (such as berries, peaches, or apples)
  • Granulated sugar: 1/3 cup (adjust to taste depending on fruit)
  • All-purpose flour or cornstarch: 2 tbsp
  • Lemon juice: 1 tbsp
  • Ground cinnamon (optional): 1/2 tsp
  • Old-fashioned rolled oats: 1 cup
  • All-purpose flour: 1/2 cup
  • Brown sugar, packed: 1/2 cup
  • Ground cinnamon: 1/2 tsp
  • Salt: 1/4 tsp
  • Unsalted butter, melted: 1/2 cup

Instructions

Preheat oven:
Preheat the oven to 350°F (175°C).
Prepare fruit filling:
In a large bowl, toss the frozen fruit with sugar, flour or cornstarch, lemon juice, and cinnamon. Spread evenly into a baking dish.
Make crisp topping:
In another bowl, mix the oats, flour, brown sugar, cinnamon, and salt. Pour in melted butter and stir until clumps form.
Assemble:
Sprinkle the oat mixture evenly over the fruit.
Bake:
Bake for 35 to 40 minutes, until the topping is golden brown and the fruit is bubbling.
Serve:
Let cool slightly before serving. Enjoy warm, optionally with vanilla ice cream or yogurt.
Oven-baked fruit crisp with mixed berries, a comforting dessert with a crispy oat crust. Save
Oven-baked fruit crisp with mixed berries, a comforting dessert with a crispy oat crust. | grinnosh.com

I love sharing this fruit crisp with loved ones, especially when we gather for casual dinners. The aroma that fills the kitchen always brings everyone closer together.

Required Tools

Large mixing bowl, measuring cups and spoons, baking dish, mixing spoon or spatula, oven.

Allergen Information

Contains wheat and milk. To make gluten-free, use certified gluten-free oats and flour blend. For dairy-free, use a plant-based butter substitute.

Nutritional Information (per serving)

Calories: 290, Total Fat: 10 g, Carbohydrates: 48 g, Protein: 3 g

A close-up photo of fruit crisp, showing the sweet, bubbling fruit filling under a crunchy oat crumble. Save
A close-up photo of fruit crisp, showing the sweet, bubbling fruit filling under a crunchy oat crumble. | grinnosh.com

This fruit crisp is always received with smiles. Try it with different fruits for new flavor combinations!

Recipe FAQ

→ Can fresh fruit be used instead of frozen?

Yes, fresh fruit can be used but may require adjustments in cooking time and additional thickening agents due to higher moisture content.

→ How can I make the topping crunchier?

Adding chopped nuts such as walnuts or pecans to the oat topping increases crunch and flavor.

→ Is there a dairy-free alternative for the butter in the topping?

Yes, melted coconut oil or vegan butter are excellent dairy-free substitutes that maintain a rich texture.

→ What thickening agents work best for the fruit filling?

All-purpose flour or cornstarch effectively thickens the fruit juices released during baking, ensuring a balanced texture.

→ Can this dish be prepared ahead of time?

Yes, assemble in advance and refrigerate before baking. Baking time may vary slightly from chilled state.

Fruit Crisp Frozen Fruit Oats

A comforting treat of sweet frozen fruit crowned with a crunchy oat topping, perfect for any season.

Prep duration
10 min
Cook duration
35 min
Complete duration
45 min
Created by Hannah Lewis


Skill level Easy

Heritage American

Output 6 Portions

Dietary guidelines Meat-free

Components

Fruit filling

01 6 cups mixed frozen fruit (berries, peaches, or apples)
02 1/3 cup granulated sugar
03 2 tablespoons all-purpose flour or cornstarch
04 1 tablespoon lemon juice
05 1/2 teaspoon ground cinnamon (optional)

Crisp topping

01 1 cup old-fashioned rolled oats
02 1/2 cup all-purpose flour
03 1/2 cup packed brown sugar
04 1/2 teaspoon ground cinnamon
05 1/4 teaspoon salt
06 1/2 cup unsalted butter, melted

Directions

Stage 01

Preheat oven: Set the oven to 350°F and prepare a 9x13-inch baking dish.

Stage 02

Prepare fruit filling: In a large bowl, combine frozen fruit, sugar, flour or cornstarch, lemon juice, and cinnamon. Mix thoroughly and transfer evenly to the baking dish.

Stage 03

Mix topping: In a separate bowl, blend oats, flour, brown sugar, cinnamon, and salt. Add melted butter and stir until clumps form.

Stage 04

Assemble crisp: Distribute the oat mixture evenly over the fruit layer in the baking dish.

Stage 05

Bake: Bake for 35 to 40 minutes until the topping is golden and fruit filling bubbles.

Stage 06

Cool and serve: Allow to cool slightly before serving. Serve warm, optionally with vanilla ice cream or yogurt.

Necessary tools

  • Large mixing bowl
  • Measuring cups and spoons
  • 9x13-inch baking dish
  • Mixing spoon or spatula
  • Oven

Allergy details

Review each component for potential allergens and consult with healthcare professionals if you're uncertain about ingredients.
  • Contains wheat and milk. For gluten-free, use certified gluten-free oats and flour. For dairy-free, opt for plant-based butter.

Nutrient content (per portion)

These values are approximate guidelines only and shouldn't replace professional nutritional advice.
  • Energy: 290
  • Fats: 10 g
  • Carbohydrates: 48 g
  • Proteins: 3 g