1/4 c. chopped onion
1 Tbsp. vegetable oil
1 (10 oz.) pkg. thawed spinach
1 c. frozen mixed vegetables
2 Tbsp. flour
1 (14.5 oz.) can chicken broth
1 1/4 c. chopped potato(es)
1/4 c. shredded Cheddar cheese
2 1/2 c. diced cooked chicken
1/4 tsp. garlic powder
1 cup whole wheat flour
4 Tbsp. very cold butter