potato soup w/ bacon and spinach

adapted from this bon appetit recipe

1/2 lb bacon, cut ino 1/2" pieces
2 small onions, sliced
6 garlic cloves, minced
1 teaspoon dried thyme
2 14.5 oz cans diced tomatoes
3 sweet potatoes, peeled and cut into 1/2" pieces
3 medium yukon gold potatoes, peeled and cut into 1/2" pieces
3 medium red potatoes, peeled and cut into 1/2" pieces
7 c chicken broth
9 oz (or bigger) bag spinach

Cook bacon until crisp in LARGE pot.  Transfer to paper towel.  Add onion to drippings in pot, and saute 7 min.  Add garlic and thyme; cook 1 min.  Pour through fine mesh strainer to drain extra grease, and return onion mixture to pot.  Add tomatoes, and cook 2 min.  Mix in potatoes.  Add broth; bring to boil.  Reduce to medium-low heat and simmer 15 min. or until potatoes tender.  Stir in spinach until just wilted.  Add bacon.