Italian Grandma Makes Baked Ziti/Rigatoni (Pasta al Forno)

BAKED ZITI (Pasta al Forno):

Olive Oil 1 small Yellow Onion, chopped

2 cloves Garlic, halved

2 lbs Ground Beef

2 qts Tomato Puree

2 tsp Basil, dried

Salt and Pepper to taste

1 lb Rigatoni Pasta or Ziti or whatever pasta you like

1 cup Sweet Peas,

4 oz. frozen

3 Boiled Eggs

1-2 cups (approx.) Grated Pecorino Romano Cheese

1½ lbs Whole Milk

Mozzarella Cheese