The kids might notice a bit of spinach, but will never realized that this healthy, balanced beef dinner is packed with an additional 5 cups of chopped vegetables. The parent on dinner duty will also appreciate that it's a one-skillet, 30 minute meal -- quick to make and easy clean up!
Add 1 tablespoon of olive oil to large skillet and bring to medium high heat. Add thinly sliced sirloin steak to pan and stir fry, stirring constantly for 3 to 5 minutes until browned.
Transfer cooked beef to plate to rest and discard of any remaining liquid in skillet.
Add remaining 1 tablespoon olive oil to skillet and bring back to medium-high heat. Add chopped mushrooms and cauliflower bits and sauté for 3 to 4 minutes until softened.
Stir in Greek seasoning and cook for an additional 30 seconds, or until fragrant.
Add couscous and vegetable stock, stir to combine, then cover, reduce heat to low, and simmer for 8-10 minutes until broth is absorbed.
Remove from heat and stir in spinach until wilted. Top with feta cheese and pine nuts. Serve warm.