Spinach-Chicken Salad with Avocado and Strawberries

I love quick and super tasty salads and this surely is one of those.  It's easy and super delicious, and quite filling too.  The marinade/dressing is the key to how tasty this is. Also, all the flavors combine beautifully.  Great salad!  Yum!  Enjoy!
For marinade/dressing:
-1/4 cup extra virgin olive oil
-1 Tbs balsamic vinegar
-1 tsp sugar
-1/2 tsp salt
-1/2 tsp pepper
For salad:
-2 large chicken breasts, boneless, skinless
-6 oz baby spinach
-8 fresh strawberries, hulled and cut into chunks
-1 avocado, pitted and sliced
-1/2 small red onion, sliced
-1/2 cup crumbled feta cheese
-1/4 cup sliced almonds
Combine all dressing ingredients.  Pour half into large ziploc bag.  Cut the chicken into chunks and place in bag with half the marinade.  Stir to combine and place in the fridge for at least 30 minutes, but no longer than 2 hours.
Heat up a nonstick large skillet.  When hot, add the chicken and sear until cooked through.  Remove from stove and let it cool for a little.
Assemble your yummy salad by topping your plate with spinach, strawberries, chicken, avocado, onion, feta, almonds and, of course, a drizzle of the super yummy dressing.  Enjoy!
Slightly adapted from a recipe found here.