The method I used was to purchase bedding plants and transplant them. That way, I did not need to add any soil for seed germination, as that part was already done. I found a wonderful healthy looking selection at both Canadian Tire and Loblaws. Further, I was able to find individual plants and not have to buy trays of six or four.
The garden was planted with winter squash, lebanese cucumbers, cherry tomatoes, yellow tomatoes, everyday run-of-the-mill tomatoes, "Blue Lake" climbing or runner beans, sweet peppers, nasturtiums, basil, oregano, and curly and flat parsley.
Using a sharp trowel, part the bale and insert the plants, with or without the soil attached as it didn't seem to matter.