Spaghetti With Vegetables

Ingredients

• 1/4 cup margarine
• 2 cups diagonally sliced green beans
• 1 small onion (grated)
• 1 1/2 cups thinly sliced yellow squash
• 1 1/2 cups thinly sliced zucchini
• 4 medium tomatoes, cut into wedges
• 1/4 teaspoon dried oregano
• 1/8 teaspoon pepper (or to taste)
• 3 tablespoons margarine
• 8 ounces spaghetti
• 1 tablespoon salt (to cook pasta in)
• grated parmesan cheese