Add a tablespoon olive oil to a large pot of water and bring to a boil. Cook lasagna noodles al dente (6-8 minutes) according to package directions. Drain and set aside.
Preheat oven to 350°F.
Spray a mini-loaf tin generously with non-stick cooking spray. Set aside.
In a large skillet, cook Italian sausage until browned, breaking it up into crumbles as it cooks.
Stir in minced garlic, marinara sauce, sun-dried tomato pesto, salt, pepper and garlic powder. Bring sauce to a simmer. Remove from heat.
Cut cooked lasagna noodles so they fit into each mini loaf pan opening.
Top noodles with a scoop of the meat sauce.
Top with a sprinkle of Parmesan cheese.
Top with a layer of shredded Mozzarella cheese.
Repeat layers.
Add another lasagna noodle cut to fit each opening. Top with meat sauce, then Parmesan cheese and a final layer of Mozzarella cheese.
Bake uncovered for 25-30 minutes at 350° until heated through and cheese is hot and bubbly.
Allow mini-lasagnas to sit for 5-10 minutes to let them set up before removing them with a spatula from the pan.