italian 3-cheese stuffed shells

Ingredients For italian 3-cheese stuffed shells

• 1 lb

  ground ground chuck
• 1 c

  onion chopped
• 1 clove

  garlc , minced
• 2 c

  hot water
• 1 can

  ( 12 oz ) tomato paste
• 1 Tbsp

  instane beef bouillon granules
• 1 1/2 tsp

  dried oregano
• 1

  ( 16 oz ) container cottage cheese
• 1 pkg

  ( 8 oz ) shredded mozzarella cheese, divided
• 1/2 c

  grated parmesan cheese
• 1

  egg beaten
• 24

  jumbo pasta shells, cooked and drained