Cheesy Slow Cooker Chili Dogs

Ingredients (9)

• + 2 (16 ounce) packages hot dogs add to pantry
• + 2 (15 ounce) cans chili without beans add to pantry
• + 1 (10.75 ounce) can condensed Cheddar cheese soup add to pantry
• + 3 tablespoons ketchup add to pantry
• + 1 (4 ounce) can chopped green chilies, drained add to pantry
• ✓ 20 hot dog buns
• + 1 cup shredded Cheddar cheese add to pantry
• + ¼ cup chopped onion, or to taste add to pantry
• + 1 ½ cups crushed corn chips (such as Fritos®) add to pantry