Mushroom Burgers with Caramelized Onions & Kale Chips

We've doing our best to eat healthier lately, and that means we've had to get creative with the types of foods we're cooking in the kitchen.

Case in point: the mushroom burger, which is a nice substitute for an actual burger and, though it doesn't necessarily taste like a hamburger, it's packed with its own flavors that make it equally satisfying. We tweaked a recipe from Christal and made it our own, leaving out the dairy, but you could totally add cheese to make it even better.

Here's what we did:

Ingredients:

• Portabello mushrooms
• 2 tbsp balsamic vinegar
• 1 tbsp olive oil
• 1 cup sliced sweet white onion
• 1 large tomato, sliced
• 2 cups mixed greens lettuce
• 4 tsp Dijon mustard
• Kaiser rolls
• Kale
• Salt
• Pepper

Instructions:

1. Preheat the grill.
2. Take a large ziploc, and place mushrooms in the bag, add the balsamic vinegar and 1 tablespoon of olive oil, and seal bag. Shake the bag until the mushrooms are coated in the vinegar and oil. Let sit for a few minutes while preparing the other ingredients.
3. Meanwhile, preheat oven to 350 degrees F (175 degrees C), rinse the kale and chop it into chip-like pieces. Place on a non stick baking sheet and drizzle with olive oil, pepper, and sea salt. Cook for 10-15 mins or until chips are crispy and the edges are brown. Remove and let cool.
4. Heat a non stick pan over med-high heat, add in the sliced onions and olive oil, toss to coat the onions with salt and pepper.
5. Lower heat to medium, and cook the onions, stirring often until they are soft and browned, about 10 minutes.
6. Remove mushrooms from ziploc and place on the heated grill, rounded side up. Let cook for 3-4 minutes.
7. Meanwhile, slice tomato and wash lettuce, and prepare any other preferred garnishes.
8. Turn mushrooms over so they are flat side up and top the inside of the mushrooms with the caramelized onions.
9. Continue to cook for 3 more minutes then remove from grill.
10. Using your favorite buns, assemble burgers starting with the dijon mustard, then top with the mushroom and onions and cheese, then top with tomato, lettuce, and the other half of the bun.
11. Enjoy!