Ravioli without chard

1 teaspoon canola oil 2 cups sliced mushrooms 1 small sweet red pepper, cut into 2-inch-long strips 4 cups broccoli florets 1 cup packed baby spinach leaves[...]

1 (27 ounce) can spaghetti sauce 1 (17 ounce) package frozen cheese ravioli 1 (16 ounce) package frozen broccoli , thawed 1/4 cup grated parmesan cheese 1[...]