lynda's stuffed shells

Ingredients For lynda's stuffed shells

• 1 box

  jumbo shells..cooked and rinsed in cold water
• 1/2

  onion..chopped small
• 1 clove

  garlic..minced
• 2 Tbsp

  butter
• 2 c

  ricotta cheese
• 1 pkg

  (10oz) frozen spinach..thaw and squeeze dry
• 2 lg

  eggs..slightly beaten
• 1/2 tsp

  salt
• 3/4 c

  mozzerella cheese..shredded(need extra for top)
• 1/4 c

  parmesan cheese(need extra for top)
• 1 jar

  spaghetti sauce