To toast the nuts, preheat large skillet on medium heat, add almonds and cook for 3-5 minutes or until browned and fragrant, stirring often. Watch closely not to burn. Set aside.
In a large salad bowl, add spinach and arugula, drizzle with dressing and toss to coat.
Then add avocado, toasted almonds, cheese and toss gently a few times to combine. You can also add blueberries or any other berries, if you wish.
Serve immediately.
Notes
Make ahead: Refrigerate salad ingredients separately from the dressing covered with plastic wrap for up to 2 days. Store nuts in a cool dry place, in the fridge they lose crunch.
Dressing in a jar can be refrigerated for up to 2 weeks. Place in a bowl with hot water for 10 minutes to warm up, then shake.
Arugula: Adds nice zest but you can use more spinach instead.