These Vegan Potatoes Delmonico are a rich, creamy, golden potato casserole inspired by the classic Delmonico-style preparation. Thinly sliced potatoes are baked in a velvety dairy-free cream sauce with garlic, onion, herbs, and a golden vegan cheese topping. It’s comforting, elegant, and perfect as a holiday side dish or hearty weeknight accompaniment.
Can Vegan Potatoes Delmonico Support Weight Loss Goals?
Yes, in moderate portions. Potatoes provide satisfying carbohydrates and potassium, while keeping the creamy sauce balanced with unsweetened plant milk can reduce the overall calorie density. Adding vegetables or serving smaller portions alongside a protein-rich main course makes it easier to fit into a balanced meal.
Does Vegan Potatoes Delmonico Fit a High-Protein Lifestyle?
The traditional version is not particularly high in protein. For a higher-protein version, use unsweetened soy milk, add silken tofu to the cream sauce, and use a protein-rich vegan cheese. Nutritional yeast also adds some protein and savory flavor.
Why This Recipe is Special
- 100% vegan
- Creamy without dairy
- Golden, bubbling potato topping
- Garlic and herb infused
- Perfect holiday side dish
- Comforting and satisfying
- Easy to prepare ahead
My Personal Experience
- Thin, evenly sliced potatoes make the biggest difference.
They cook more consistently and absorb the creamy sauce beautifully. - Unsweetened soy milk works particularly well.
It gives the sauce a creamy texture and adds more protein than many other plant milks. - A little nutritional yeast makes the sauce taste much cheesier.
It adds savory depth without needing an excessive amount of vegan cheese. - Resting the casserole before serving is worth it.
The sauce thickens slightly and the potatoes become much easier to serve.
Perfect For
Perfect for Thanksgiving, Christmas, Easter, Sunday dinners, holiday buffets, potlucks, family dinners, vegan entertaining, brunches, and cozy comfort-food meals.
Why You’ll Love This Recipe
- Creamy and luxurious
- Crisp golden top
- Tender potatoes
- Rich garlic flavor
- Completely plant-based
- Excellent make-ahead side
Common Mistakes to Avoid
- Cutting potatoes unevenly — Thick pieces may remain undercooked while thin ones become soft.
- Using sweetened plant milk — It can make the sauce taste strange.
- Adding too much liquid — The casserole can become watery.
- Skipping the resting period — The sauce needs time to thicken.
- Overbrowning the top — Cover the casserole if the cheese starts browning too quickly.
Required Equipment
- 9×13-inch baking dish — Provides enough surface area for even cooking.
- Sharp knife or mandoline — Creates uniformly thin potato slices.
- Medium saucepan — For preparing the creamy sauce.
- Whisk — Prevents lumps in the sauce.
- Mandoline guard — Helps safely slice potatoes uniformly.
- Aluminum foil — Keeps the potatoes covered while they cook.
Storage Instructions
- Refrigerator: Store covered for 4–5 days.
- Freezer: Freeze portions for up to 2 months.
- Reheating: Cover and bake at 175°C/350°F until hot.
- Individual portions: Microwave gently, then finish in an oven or air fryer to restore the golden top.
Recipe Details
- Preparation Time: 20 minutes
- Cooking Time: 60 minutes
- Resting Time: 10 minutes
- Total Time: 1 hour 30 minutes
- Servings: 8
- Best Season: Autumn & winter
- Total Calories (Per Serving): Approximately 280 calories (estimate)
Short Description
Vegan Potatoes Delmonico are tender sliced potatoes baked in a creamy garlic-herb sauce and finished with a golden layer of dairy-free cheese.
The result is rich, comforting, and elegant enough for holiday dinners while being simple enough for a weeknight meal.
📝 Ingredients
Potatoes
- 1.4 kg Yukon Gold or similar potatoes
- 1 tablespoon olive oil
- ½ teaspoon salt
- ¼ teaspoon black pepper
Vegan Cream Sauce
- 2 tablespoons vegan butter
- 1 small yellow onion, finely diced
- 3 cloves garlic, minced
- 2 tablespoons all-purpose flour
- 2 cups (480 ml) unsweetened soy milk
- ½ cup (120 ml) unsweetened plant-based cooking cream
- 3 tablespoons nutritional yeast
- ½ teaspoon dried thyme
- ½ teaspoon dried rosemary
- ½ teaspoon salt
- ¼ teaspoon black pepper
- ½ teaspoon Dijon mustard
Topping
- 1 cup (100 g) shredded vegan mozzarella or cheddar
- 2 tablespoons nutritional yeast
- Fresh parsley, optional
- Fresh thyme, optional
Optional High-Protein Upgrade
- Replace ½ cup of the soy milk with ½ cup silken tofu, blended until smooth.
- Use a protein-rich vegan cheese.
- Add 2 tablespoons unflavored plant protein powder to the sauce if desired, but blend thoroughly to prevent lumps.
Directions
- Preheat the oven — 5 minutes
Preheat oven to 190°C/375°F. Lightly grease a 9×13-inch baking dish. - Slice the potatoes — 10 minutes
Peel the potatoes if desired. Slice into approximately 3 mm (⅛-inch) slices. Keep the slices relatively uniform. - Prepare the sauce — 10 minutes
Melt vegan butter in a saucepan over medium heat. Add onion and cook for 4–5 minutes until softened. Add garlic and cook for another 30 seconds. - Make the roux — 2 minutes
Sprinkle in flour. Whisk continuously for approximately 1 minute. - Add plant milk — 5 minutes
Slowly whisk in soy milk. Add plant-based cream, nutritional yeast, thyme, rosemary, salt, pepper, and Dijon mustard. Cook for 3–5 minutes, whisking, until slightly thickened. Texture cue: The sauce should coat the back of a spoon but remain pourable. - Layer the potatoes — 5 minutes
Arrange half the potato slices in the baking dish. Season lightly with salt and pepper. Pour over approximately half the sauce. Repeat with the remaining potatoes and sauce. - Add the topping — 2 minutes
Sprinkle vegan cheese and nutritional yeast evenly over the surface. - Bake covered — 40 minutes
Cover tightly with foil. Bake at 190°C/375°F for 40 minutes. - Bake uncovered — 15–20 minutes
Remove the foil. Continue baking until the potatoes are completely tender and the top is bubbling and golden. Visual cue: A knife should slide easily through the center. - Rest — 10 minutes
Remove from the oven. Let stand for 10 minutes before serving. - Garnish and serve
Sprinkle with fresh parsley or thyme. Serve warm.
Nutrition Facts — Per Serving (Approximate)
Per 1 of 8 servings:
| Nutrient | Amount |
|---|---|
| Calories | ~280 kcal |
| Fat | ~12 g |
| Cholesterol | 0 mg |
| Sodium | ~430 mg |
| Potassium | ~720 mg |
| Total Carbohydrates | ~37 g |
| Fiber | ~4 g |
| Net Carbs | ~33 g |
| Sugars | ~4 g |
| Protein | ~8 g |
| Calcium | ~150 mg |
Approximate values vary according to the plant milk, vegan cheese, and cream used.
Notes
- Higher protein: Use soy milk, tofu blended into the sauce, and protein-rich vegan cheese.
- Gluten-free: Replace flour with cornstarch or a gluten-free flour blend.
- Lower calorie: Reduce vegan cheese and use a lighter unsweetened plant milk.
- Extra cheesy: Add another ½ cup vegan cheese to the topping.
- More vegetables: Add thinly sliced mushrooms, spinach, or caramelized onions.
- Garlic lovers: Increase garlic to 5 cloves.
- Extra crispy: Broil for 1–2 minutes at the end, watching carefully.
- Make ahead: Assemble several hours ahead, refrigerate, and bake when ready. Allow the dish to sit at room temperature for about 20 minutes before baking.
Frequently Asked Questions
1. What are Potatoes Delmonico?
They are a classic creamy potato preparation in which sliced or shredded potatoes are baked with a rich cream-based sauce until tender and golden. This vegan version recreates that comforting style without dairy.
2. Can I use russet potatoes?
Yes. Yukon Gold potatoes provide a naturally creamy texture, while russets create a softer, starchier casserole.
3. Can I make this ahead of time?
Yes. Assemble it several hours ahead and refrigerate until ready to bake.
4. How can I make Vegan Potatoes Delmonico high in protein?
Use soy milk, add blended silken tofu to the sauce, and choose a protein-rich vegan cheese.
5. Can I freeze it?
Yes, although the potato texture may become slightly softer after thawing. Freeze tightly covered for up to 2 months.
6. Why are my potatoes still hard?
The slices may be too thick, or the sauce may not have been hot enough during baking. Slice potatoes evenly and make sure the casserole is tightly covered during the first stage of baking.
