Instant Pot Lasagna

Bahan-bahan (6 porsi)

• ½ cup finely diced onion
• ½ pound ground beef (or sausage)
• 2 cloves garlic (minced)
• 1 teaspoon Italian Seasoning
• 3 cups marinara sauce (or pasta sauce)
• 1 cup ricotta cheese (or cottage cheese)
• 1 egg
• ⅔ cup shredded mozzarella cheese
• 5 ounces frozen chopped spinach (thawed and squeezed dry)
• 8 to 9 lasagna noodles (uncooked)
• 1 cup shredded mozzarella cheese