Creamy Green Bean and Peas Casserole Recipe for Comfort
Creamy green bean and peas casserole brings comfort food to a whole new level with its rich, satisfying flavors and smooth texture.
Busy weeknights call for something simple yet filling, and casseroles always deliver on that promise.
Potlucks and family gatherings benefit from dishes that can feed a crowd without requiring constant attention in the kitchen.
The beautiful blend of colors makes any dinner table look more inviting and appetizing.
Casseroles have earned their reputation as reliable side dishes that complement almost any main course you serve.
Preparation takes minimal effort while the oven does most of the work for you.
Getting dinner on the table becomes less stressful when you have dependable recipes like this one waiting in the wings.
Why Cheesy Green Bean and Pea Casserole Belongs
What Goes Into Green Bean and Pea Casserole
Main Vegetables:Flavor Base:Creamy Cheese Components:Crispy Topping:Essential Tools for Green Bean and Pea Casserole
Cheesy Green Bean and Peas Casserole Baking Guide
Prep the Oven
Crank up your oven to 350°F and grab a casserole dish. A quick spray of cooking spray or light butter coating will keep everything from sticking.
Blanch the Veggies
Boil a pot of salted water and toss in 1.1 pounds of green beans and 7 ounces of frozen peas. Cook these guys for 2-3 minutes until they’re just tender. Drain and set aside.
Sauté the Aromatics
Warm 1 tablespoon olive oil in a large skillet over medium heat. Toss in:
Cook until the onions turn soft and translucent, about 5 minutes.
Add Mushroom Magic
Slide 7 ounces of sliced mushrooms into the skillet. Let them cook until they release their moisture and start to brown, around 5-7 minutes.
Create the Thickening Base
Sprinkle 2 tablespoons of flour over the mushrooms. Stir and cook for 1-2 minutes to remove that raw flour taste.
Build the Creamy Sauce
Pour in:
Stir constantly until the sauce thickens up nicely.
Cheese It Up
Pull the skillet off the heat and mix in 7 ounces of shredded cheddar cheese until it melts completely. Season with salt and pepper to your liking.
Combine Vegetables and Sauce
Fold the cooked green beans and peas into the cheesy sauce, making sure everything gets a nice coating.
Prepare the Topping
In a small bowl, mix:
Stir until the breadcrumbs are evenly moistened.
Assemble the Casserole
Transfer the vegetable and cheese mixture to your prepared casserole dish. Sprinkle the buttery breadcrumbs across the top in an even layer.
Bake to Perfection
Slide the casserole into the 350°F oven and bake for 25-30 minutes. You’re looking for a bubbly center and golden-brown top.
Serve and Garnish
Let the casserole rest for a few minutes after pulling it from the oven. If you’re feeling fancy, sprinkle some fresh chopped parsley on top before serving.
Helpful Cooking Notes for Green Bean and Pea Casserole
Cheesy Green Bean and Pea Casserole Variations
How to Serve Cheesy Green Bean and Peas Casserole Well?
Storage Guide for Cheesy Green Bean and Pea Casserole
Cheesy Green Bean and Peas Casserole Reader Q&A
Can I use frozen vegetables instead of fresh?
Absolutely! Frozen green beans and peas work perfectly. Just thaw and drain them before adding to the recipe to prevent excess moisture.
What type of cheese works best?
Cheddar is fantastic, but you can swap in gruyere, monterey jack, or a sharp white cheddar for different flavor profiles.
How do I prevent a soggy breadcrumb topping?
Toast the breadcrumbs in a dry pan for a few minutes before mixing with butter. This helps them stay crisp and golden during baking.
Are there gluten-free alternatives for this recipe?
Replace regular flour with cornstarch or a gluten-free flour blend. Use gluten-free breadcrumbs for the topping to make the entire dish gluten-free.
Can I prepare this casserole ahead of time?
Absolutely! Assemble the casserole without the breadcrumb topping, cover, and refrigerate up to 24 hours. Add breadcrumbs just before baking.
How can I make this dish more protein-rich?
Add cooked diced chicken, crumbled bacon, or sliced almonds to boost protein content and add extra texture.
Creamy Green Bean and Peas Casserole Recipe
- Total Time: 45-55 minutes
- Yield: 4 1x
Description
Creamy green bean and peas casserole delivers pure comfort straight from your kitchen, blending tender vegetables with a rich, melted cheese sauce that makes weeknight dinners feel special. Crispy breadcrumb topping adds just the right crunch to this simple side dish that brings warmth to your family table.
Ingredients
Vegetables:
- 500 g green beans
- 200 g frozen peas
- 1 onion
- 2 cloves garlic
- 200 g mushrooms
Sauce and Cheese:
- 200 g shredded cheddar cheese
- 2 tablespoons all-purpose flour
- 300 ml vegetable broth
- 200 ml heavy cream
- 1 tablespoon olive oil
- Salt and pepper
Topping:
- 100 g breadcrumbs
- 2 tablespoons butter
- Fresh parsley
Instructions
- Warm your oven to 350°F. Coat a 9×13-inch casserole dish with cooking spray or butter.
- Fill a large pot with salted water and bring to a rapid boil. Add 500g green beans and 200g frozen peas, cooking exactly 3 minutes until crisp-tender. Drain immediately and set aside.
- Heat 1 tablespoon olive oil in a large skillet over medium temperature. Sauté 1 diced onion and 2 minced garlic cloves until translucent, about 4 minutes.
- Add 200g sliced mushrooms to the skillet. Cook until mushrooms release moisture and develop golden edges, approximately 6 minutes.
- Dust 2 tablespoons flour across the mushroom mixture, stirring thoroughly to coat each piece. Allow to cook 1 minute to remove raw flour taste.
- Slowly pour 300ml vegetable broth and 200ml heavy cream into the skillet. Whisk continuously until sauce thickens and becomes smooth, about 3 minutes.
- Remove skillet from heat. Stir 200g shredded cheddar cheese into the sauce until completely melted. Season with salt and pepper.
- Fold cooked green beans and peas into cheese sauce, ensuring every vegetable gets evenly coated.
- Transfer entire mixture into prepared casserole dish, spreading to create an even layer.
- Mix 100g breadcrumbs with 2 tablespoons melted butter in a separate bowl. Sprinkle this crumb mixture across the top of the casserole.
- Bake at 350°F for 28 minutes until breadcrumbs turn golden and sauce bubbles around edges.
- Let casserole rest 5 minutes after removing from oven. Garnish with chopped fresh parsley before serving.
Notes
- Use fresh green beans and peas for the best texture and flavor, avoiding canned or frozen vegetables if possible.
- Ensure the vegetables are just tender when blanching to maintain a crisp bite and prevent mushiness.
- Toast the breadcrumbs separately in a pan before topping the casserole for extra crunch and golden color.
- For a lighter version, swap heavy cream with Greek yogurt or half-and-half and use reduced-fat cheese.
- Prep Time: 15-20 minutes
- Cook Time: 30-35 minutes
- Category: Casseroles
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 4
- Calories: 370 kcal
- Sugar: 4 g
- Sodium: 380 mg
- Fat: 27 g
- Saturated Fat: 13 g
- Unsaturated Fat: 12 g
- Trans Fat: 0.5 g
- Carbohydrates: 20 g
- Fiber: 6 g
- Protein: 15 g
- Cholesterol: 65 mg


Daniel Navarro
Culinary Content Director
Expertise
Mexican-inspired Menus, Seasonal Restaurant Specials, Shared Plate Dining, Tequila Pairings, Chef-driven Recipes
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Daniel writes about bold flavors, chef-driven dishes, and the kind of restaurant moments that turn tacos, mezcal, and shared plates into a night worth repeating.