Pea and onion casserole

Indulge in a comforting Pea and Onion Casserole made with wholesome ingredients. This savory dish combines tender peas and caramelized red onions in a creamy, buttery sauce thickened with whole-grain wheat flour. Perfectly seasoned with a dash of salt and black pepper, it's an easy and delicious meal for any night of the week.

  • 03 Jun 2025
  • Cook time 15 min
  • Prep time 10 min
  • 8 Servings
  • 6 Ingredients

Pea and onion casserole

Pea and onion casserole is a simple yet delicious dish, perfect for a comforting meal any time of the year. This recipe combines the sweetness of peas and red onions with a creamy, buttery sauce. With easy-to-find ingredients and straightforward instructions, anyone can whip up this dish in no time.

Ingredients:

4 tbsp butter
54g
4 tbsp whole-grain wheat flour
30g
1.50 cups milk (2% fat)
370g
1.50 cups peas
210g
2 red onions
190g
1 dash salt
0.40g
1 dash black pepper
1/10g

Instructions:

1. Preheat the Oven:
- Preheat your oven to 350°F (175°C).
2. Prepare the Onions:
- Peel and thinly slice the red onions. Set them aside.
3. Cook the Peas:
- If using fresh or frozen peas, blanch them in boiling water for 2-3 minutes. Drain and set aside.
- Canned peas can be used as is after draining.
4. Make the Roux:
- In a medium saucepan, melt the butter over medium heat.
- Once melted, add the whole-grain wheat flour to the pan.
- Stir continuously to form a roux, cooking for about 2 minutes until it turns a light golden color.
5. Create the Sauce:
- Gradually add the milk to the roux, whisking continuously to avoid lumps.
- Cook the mixture, continuing to stir, until it thickens into a creamy sauce. This should take about 5-7 minutes.
6. Season the Sauce:
- Add a dash of salt and black pepper to the sauce, stirring well to combine.
7. Combine Ingredients:
- In a mixing bowl, combine the peas and sliced red onions.
- Pour the creamy sauce over the peas and onions and mix well until everything is evenly coated.
8. Transfer to Baking Dish:
- Transfer the mixture to a casserole dish, spreading it out evenly.
9. Bake:
- Place the casserole dish in the preheated oven.
- Bake for 25-30 minutes, or until the top is slightly golden and the dish is heated through.
10. Serve:
- Remove from the oven and let the casserole cool for a few minutes before serving.
- Enjoy your delicious Pea and Onion Casserole as a side dish or a light main course!

Tips:

- For a richer flavor, consider using whole milk or half-and-half instead of 2% milk.

- Feel free to add your favorite herbs or spices to enhance the flavor profile of the casserole.

- If you prefer a crunchier topping, you can sprinkle some breadcrumbs mixed with a bit of melted butter over the casserole before baking.

- To make the dish more substantial, you can add some cooked chicken, ham, or bacon bits.

This pea and onion casserole is a harmonious blend of flavors and textures that will delight your taste buds. The creamy sauce perfectly complements the tender peas and sweet red onions, making it a crowd-pleaser. Whether enjoyed as a side dish or a light main course, this casserole is sure to become a favorite in your household.

Nutrition Facts
Serving Size110 grams
Energy
Calories 120kcal6%
Protein
Protein 3.74g2%
Carbohydrates
Carbohydrates 11g3%
Fiber 2.09g6%
Sugar 4.79g5%
Fat
Fat 7g8%
Saturated 3.78g13%
Cholesterol 20mg-
Vitamins
Vitamin A 120ug13%
Choline 20mg4%
Vitamin B1 0.13mg11%
Vitamin B2 0.10mg8%
Vitamin B3 0.67mg4%
Vitamin B6 0.10mg6%
Vitamin B9 22ug6%
Vitamin B12 0.25ug10%
Vitamin C 4.57mg5%
Vitamin E 0.05mg0%
Vitamin K 7ug6%
Minerals
Calcium, Ca 70mg5%
Copper, Cu 0.06mg7%
Iron, Fe 0.61mg6%
Magnesium, Mg 20mg5%
Phosphorus, P 90mg7%
Potassium, K 160mg5%
Selenium, Se 2.09ug4%
Sodium, Na 60mg4%
Zinc, Zn 0.54mg5%
Water
Water 80g-
* Percent Daily Values are based on a 2000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

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