3 medium all-purpose potatoes, or about 1 lb. potatoes of choice, peeled and cut into 1/2 to 1 inch pieces
3 medium sweet potatoes, (about 1 lb.) peeled and cut into 1/2 to 1 inch pieces
4 cups loosely packed fresh spinach leaves, well rinsed if freshly picked
1 lb ground beef
1 medium onion, chopped
1 3/4 teaspoons salt, divided
2 cups (16 oz) sour cream
8 oz cream cheese, softened
3 cloves garlic, minced
1 egg
2 teaspoons paprika, preferably smoked paprika
1/4 chipotle chile pepper, or additional paprika
1/2 teaspoon black pepper
2 2/3 cups shredded Cheddar or Colby Jack cheese, divided
4 to 5 slices bacon, fried till crisp and crumbled