Easy Spaghetti Casserole

• 1 onion
• 1 green pepper
• 1 bay leaf
• 2,000 gr dutch oven
• 1,000 gr italian tomatos (peeled)
• 350 gr chuck (ground)
• 350 ml tomato sauce
• 240 ml cheese to the sauce
• 230 gr cheddar cheese (shredded)
• 170 gr spaghetti