Asparagus and Pea Béchamel Bake

By , Test Kitchen Director · Reviewed by AislePrompt Editorial · ·

A creamy, vegetable-packed casserole with tender asparagus and peas baked in a rich béchamel sauce, topped with a golden breadcrumb crust. This french-inspired vegetarian ready in about 50 minutes pairs asparagus, peas, butter for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 350 calories and feeds 4, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Prep: 20 min Cook: 30 min Serves 4 French cuisine 350 cal/serving
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Ingredients

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Instructions

  1. Step 1: Preheat oven to 375°F. Melt 3 tbsp butter in a medium saucepan over medium heat, then whisk in 3 tbsp all-purpose flour for 1 minute until bubbly.
  2. Step 2: Gradually whisk in 2 cups whole milk, then add 1/2 cup grated Gruyère and 1/4 cup grated Parmesan. Cook, stirring constantly, until thickened (about 5 minutes), then season with salt and pepper to taste.
  3. Step 3: Bring a pot of salted water to a boil. Add 12 oz trimmed asparagus and 1 cup peas, cook 3 minutes until bright green and tender-crisp, then drain.
  4. Step 4: Combine cooked asparagus and peas with béchamel sauce in a baking dish. Sprinkle 1/4 cup panko breadcrumbs and 1 tbsp olive oil over the top.
  5. Step 5: Bake 20-25 minutes until golden and bubbling around the edges.

Frequently asked questions

How long does Asparagus and Pea Béchamel Bake take to make?

Total time is about 50 minutes (20 min prep + 30 min cook). Most home cooks find this fits comfortably into a weeknight; double the batch on Sunday for two dinners.

How do I store leftover Asparagus and Pea Béchamel Bake?

Cool to room temperature within 2 hours, then store in an airtight container in the fridge for up to 4 days. Reheat covered in a 350°F oven for 10-12 minutes, or microwave at 70% power in 60-second bursts to keep asparagus from drying out.

Can I substitute ingredients in Asparagus and Pea Béchamel Bake?

Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.

How do I scale Asparagus and Pea Béchamel Bake for a different number of people?

The recipe is written for 4 servings. Multiply each ingredient by (your serving target / 4). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.

What goes well with Asparagus and Pea Béchamel Bake?

French vegetarian like this pair well with a simple grain (rice, couscous, or crusty bread), a quick salad with acid (lemon vinaigrette, pickled onions), and a pan sauce or yogurt-based dip. Tap "Plan a meal with the AI" to get specific side suggestions.

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