Lasagna Recipe without meat

2 Tbsp olive oil 1 Cup chopped yellow onion (1 onion ) 2 garlic cloves minced 1 1/2 pounds Italian turkey sausage casings removed 1 28-oz can crushed tomatoes[...]

1 lb ground chuck 1/2 cup yellow onion , diced (about 1/2 onion) 2 tablespoons butter 2 minced garlic cloves 1 (14 ounce) can petite diced tomatoes 1 (6[...]