This creamy vegetable casserole, also called a vegetable bake or cheesy veg bake, starts on the stove, then bakes in a 9×13 pan or ramekins with a golden, crispy topping. Easy, budget-friendly comfort food for any night.

Creamy Vegetable Casserole with Crispy Topping
This bake is what happens when you toss a bunch of everyday veg into a pan and let them do their thing. I used carrots, potatoes, butternut, zucchini, onion, and bell pepper, but really, just grab what’s in your veggie drawer.
Once the vegetables are tender, I cheat my way into a creamy sauce by stirring in flour, hot water, cream, and a bit of cheese. No whisking. No extra pot. Just one pan bubbling into creamy goodness.
Finished it off with a light layer of cheesy crumbs so that filling can peek through. (Double the crumb if you’re feeling crunchy, no judgement 😉)
How to make Creamy Vegetable Casserole
These are the visual steps. For the full recipe with exact measurements, scroll to the recipe card at the bottom of this post

- Combine breadcrumbs, flour, shredded cheese, and herbs in a small bowl.
- Use a fork or your fingers to mix into a light, crumbly topping. Set aside.
Breadcrumbs: Regular dried breadcrumbs or panko both work. For a softer topping, use regular. For extra crispiness, go with panko.

- Cook the chopped vegetables in butter and oil until almost tender. Season with garlic, thyme, salt, and pepper.
- Remove from the heat, sprinkle with flour and stir to coat.
Vegetable swaps: You can use mushrooms, broccoli, or frozen mixed vegetables instead of any of the recipe.

- Place the pan back on the heat and pour in the hot water, stirring to combine with the flour.
- Pour in the cream, stirring as you go. This blends with the flour to create a smooth, creamy sauce right in the pan.
What cream to use
Use heavy cream, double cream, or pure cream, depending on what it’s called where you live.
- United States: Look for heavy cream (about 36–38% fat).
- United Kingdom: Use double cream (similar fat content to heavy cream).
- Australia: Pure cream works well (typically 35% fat with no thickeners).
- Avoid light or reduced-fat cream, as the sauce may split or turn watery.

- Stir in shredded cheese.
- Let the mixture bubble for a few minutes until thick and creamy.
Cheese options: Cheddar, mozzarella, Monterey Jack, or any good melting cheese works well.

- Spoon the creamy vegetable mixture into ramekins, filling each about ¾ full, or transfer to a baking dish if making a single large casserole.
- Top with a light layer of the crumb topping, and bake until golden and crisp. Serve warm.
Pan size note
- This recipe makes enough to fill 7–8 ramekins (1-cup size) or a 6-cup (1.5-liter) baking dish, such as an 8×6-inch (24×15 cm) pan.
- If you're baking it in a 9×13-inch (23×33 cm) pan, double the recipe for best results. Otherwise, the filling layer will be too shallow and may overcook.

Storage and reheating
- Fridge: Cover and refrigerate leftovers for up to 3 days.
- Reheat: Warm in the oven at 160°C (325°F) until heated through, or microwave until warmed through.
- Freezing: This casserole can be frozen before baking. Wrap well and freeze for up to 1 month. Bake from frozen, adding 10–15 minutes to the baking time.
Recipe
Watch how to make the recipe
For the topping
- ¼ cup (15 g) breadcrumbs (regular or panko)
- ¼ cup (30 g) all-purpose flour (plain flour)
- 2 Tablespoons (17 g) shredded cheddar (see note 1)
- ½ teaspoon dried thyme or other herb blend
- 2 Tablespoons (28 g) melted butter (hot)
- Optional: Double the topping thicker or more crunch
Vegetables:
Dice all veg into roughly ½ inch cubes (1 cm) for even cooking. Zucchini can be slightly larger.
- 2 Tablespoons unsalted butter (30 g)
- 1 Tablespoon oil (15 ml)
- 1 onion, (⅔ cup / 180g)
- 2 carrots (1 cup / 120 g)
- 1 cup potatoes (150 g)
- ½ cup butternut or pumpkin (75 g)
- 1 bell pepper (¾ cup / 100 g )
- 2 zucchini (1½ cups / 240 g)
- 2 cloves garlic minced (or 1 teaspoon garlic powder)
- ½ teaspoon salt
- ¼ teaspoon black pepper
- 1 teaspoon dried thyme or 2 teaspoons fresh
Sauce
- ¼ cup all-purpose flour / plain flour (30 g)
- 1 cup hot water (240 ml) (see note 2)
- 1 cup heavy cream (240 ml) (see note 3)
- ⅓ cup shredded cheddar (33 g)
- 1 teaspoon Italian dried herbs or 1 Tablespoon chopped fresh thyme
- ½ teaspoon salt (or adjust to taste)
- ½ teaspoon black pepper
Make the topping
- In a small bowl, combine the breadcrumbs, flour, shredded cheese, herbs, and melted butter.
- Mix with a fork or your fingers until crumbly. Set aside.
Cook the vegetables
- Heat the butter and oil in a large pan over medium heat.
- Add the onion, carrots, potatoes, and butternut. Cook for 8–10 minutes, stirring occasionally.
- Add bell pepper and zucchini. Cook for 5–8 minutes more, until tender but not mushy.
- Stir in minced garlic (or garlic powder), thyme, salt, and black pepper.
Make the creamy sauce (in the same pan)
- Remove the pan from heat (no need to take the vegetables out).
- Sprinkle the flour over the vegetables and stir to coat them evenly.
- Return the pan to low heat. Slowly stir in the hot water, then the heavy cream.
- Add the salt and black pepper.
- Cook for 2–3 minutes, stirring, until the sauce thickens.
- Stir in the shredded cheese and mix until melted, smooth and creamy.
Assemble
- Spoon the mixture into 7–8 ramekins or a 6-cup (1.5-liter) baking dish (see note 4).
- Sprinkle the topping evenly over the surface.
Bake
- Bake at 350°F (175°C), or 160°C if using a fan-forced oven, for 18–22 minutes, until golden and crisp.
- Cheese options: cheddar, mozzarella, Monterey Jack, or any cheese that melts well.
- Hot vegetable stock or chicken broth can be used instead of water for extra flavor.
- Cream: Use heavy cream (US), double cream (UK), or pure cream (AU), depending on where you live
- This recipe fills 7–8 ramekins (1-cup size each) or a 6-cup (1.5-liter) baking dish, such as an 8×6-inch (24×15 cm) pan. If using a 9×13-inch (23×33 cm) pan, double the recipe for best results.
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