Papa's Favorite Beet Salad Recipe

Place beets into a large pot and cover with water; bring to a boil. Reduce heat to medium-low and simmer until tender when pierced with a fork about 1 hour. Drain and cool until beets can be easily handled. Peel beets cut into cubes and place in a bowl; refrigerate until chilled about 15 minutes.

Whisk lemon juice olive oil balsamic vinegar mustard salt pepper and garlic salt together in a large bowl until smooth. Add beets tomatoes onion avocado and feta cheese; toss. Top salad with spinach and toss.