Bring a large pot of water to a boil and cook pasta until al dente
Add olive oil to large sauté pan and cook onion until translucent. Add garlic and broccoli and cook until softened
Add chicken broth and simmer 5-10 minutes until reduced a bit. Reduce heat
In a small blender or magic bullet, blend cottage cheese with cream until smooth
Add cottage cheese mixture to sauté pan, and stir to combine. Slowly add the cheddar and mozzarella; stirring until a thick cheese sauce forms
Add pasta and toss to coat. Serve in bowls topped with more mozzarella
