French Onion Skillet Lasagna

4.98 from 78 votes

French Onion Skillet Lasagna

Vegan French Onion Skillet Lasagna – that’s sweet and savory caramelized onion, spinach, and vegan bechamel cooked on the stove alongside lasagna sheet pasta! No baking required! An easy one-skillet dinner your family will love!

Prep Time10

Cook Time40

Total Time50

Course: Main Course

Cuisine: American

Keyword: French onion skillet, skillet lasagna, vegan lasagna

Servings:

Author: Vegan Richa

Ingredients

Caramelized French Onions

1 yellow onion thinly sliced
2 Tbsp vegan butter
2 cloves garlic minced
½ tsp dried thyme
¼ tsp salt
⅛ tsp black pepper
1 ½ Tbsp balsamic vinegar or 2-3 Tbsp red wine
½ - 1 cup mushrooms Thinly sliced

White Sauce

½ cup raw cashews soaked for at least 20 mins in hot water, see notes for Nutfree option
1 cup broth
2 tsp lemon juice
2 Tbsp nutritional yeast
1 tsp italian seasoning - I use a mix of oregano thyme, sage and rosemary
½ tsp salt
1 tsp miso
⅛ tsp black pepper

For the lasagna

5 lasagna pasta sheets (5 regular or 7 no boil) broken into pieces, or use 4-5 oz any other flat pasta shape
1-2 cups spinach firmly packed
2 cups broth or water
Red pepper flakes optional for serving

US Customary - Metric

Instructions

Heat a skillet over medium heat then add butter with onions and cook for about 8 mins, or until onions start to look translucent
Add in the garlic, thyme, salt and pepper and continue to cook until onions turn a golden color
Add the balsamic vinegar or red wine and mix well, continue to cook until onions begin to caramelize. Remove ¾ of this mixture and save to use as garnish later
Add in the mushrooms and mix well, continue to cook for 1-2 minutes
Meanwhile make your white sauce - blend all ingredients together until smooth. Add the white sauce to the onion skillet and mix
Add in the broken pieces of lasagna sheets and 2 cups of broth(use the value in ingredients if you change serving size) , press down the sheets so they are completely submerged under the broth completely
Cover the skillet and cook for 12-15 minutes or until lasagna sheets are cooked - make sure to check for doneness and make sure to stir once in between so mixture doesn’t burn on the bottom. Reduce the heat if the mixture starts to stick to the bottom. You can also add in more water if the mixture has thickened too much. (No boil cook abit faster and regular depending on the brand and your stove might need a few extra minutes. )
Once the lasagna sheets are cooked, taste and adjust salt and flavor, mix in the spinach and stir. Remove from heat and cover, let sit for 3 minutes to allow spinach to wilt
Top this with the reserved caramelized onion mixture, some red pepper flakes (optional) and serve warm. Serve with garlic bread or any side dish of choice

Video

Notes

To make the pasta nut-free, you can use my nut-free Alfredo. or use silken tofu like my Spinach Artichoke Pasta Bake. Use 4-5 oz firm or silken tofu instead of cashews.
soyfree, use chickpea miso
To make the sauce without nuts and soy: use my pumpkin seed alfredo and use that sauce.
To make this Glutenfree, use Glutenfree lasagna or pasta

Nutrition